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The Sierra de Guadarrama (Guadarrama Mountains) is a mountain range forming the main eastern section of the
Sistema Central The Central System, Spanish language, Spanish and , is one of the main systems of mountain ranges in the Iberian Peninsula. The 2,592 m high Pico Almanzor is its highest summit. The Central System is located just north of the 40th parallel north, ...
, the system of
mountain range A mountain range or hill range is a series of mountains or hills arranged in a line and connected by high ground. A mountain system or mountain belt is a group of mountain ranges with similarity in form, structure, and alignment that have aris ...
s along the centre of the
Iberian Peninsula The Iberian Peninsula ( ), also known as Iberia, is a peninsula in south-western Europe. Mostly separated from the rest of the European landmass by the Pyrenees, it includes the territories of peninsular Spain and Continental Portugal, comprisin ...
. It is in Spain, between the systems
Sierra de Gredos The Sierra de Gredos is a mountain range in central Spain that spans the provinces of Ávila, Spain, Ávila, Salamanca, Spain, Salamanca, Cáceres, Spain, Cáceres, Madrid, and Toledo, Spain, Toledo. It is part of the much larger Sistema Central o ...
in the
province of Ávila A province is an administrative division within a country or state. The term derives from the ancient Roman , which was the major territorial and administrative unit of the Roman Empire's territorial possessions outside Italy. The term ''provi ...
, and
Sierra de Ayllón Sierra (Spanish for "mountain range" or "mountain chain" and "saw", from Latin ''wikt:serra#Latin, serra'') may refer to the following: Places Mountains and mountain ranges * Sierra de Juárez, a mountain range in Baja California, Mexico * Sie ...
in the
province of Guadalajara Guadalajara ( , ) is a province of Spain, belonging to the autonomous community of Castilla–La Mancha. As of 2019 it had a population of 258,890 people. The population of the province has grown in the last 10 years. It is located in the centre ...
. The range runs southwest–northeast, extending from the province of Ávila in the southwest, through the
Community of Madrid The Community of Madrid (; ) is one of the seventeen autonomous communities and 50 provinces of Spain, provinces of Spain. It is located at the heart of the Iberian Peninsula and Meseta Central, Central Plateau (); its capital and largest munici ...
, to the province of Segovia in the northeast. The range measures approximately in length. Its highest peak is Peñalara, in elevation. The flora of the Sierra de Guadarrama are characterized in the higher elevation Atlantic vegetation region with Juniper groves, montane grasslands, Spanish broom thickets, pine forests, and Pyrenean Oaks forests; and in the lower elevation Mediterranean vegetation region by Holm oak forests. while the pastures around the summits are fringed by juniper and Spanish broom shrubs. The mountains abound with a variety of wildlife such as Iberian ibex, roe deer,
fallow deer Fallow deer is the common name for species of deer in the genus ''Dama'' of subfamily Cervinae. There are two living species, the European fallow deer (''Dama dama''), native to Europe and Anatolia, and the Persian fallow deer (''Dama mesopotamic ...
,
wild boar The wild boar (''Sus scrofa''), also known as the wild swine, common wild pig, Eurasian wild pig, or simply wild pig, is a Suidae, suid native to much of Eurasia and North Africa, and has been introduced to the Americas and Oceania. The speci ...
,
badger Badgers are medium-sized short-legged omnivores in the superfamily Musteloidea. Badgers are a polyphyletic rather than a natural taxonomic grouping, being united by their squat bodies and adaptions for fossorial activity rather than by the ...
, various types of
weasel Weasels are mammals of the genus ''Mustela'' of the family Mustelidae. The genus ''Mustela'' includes the least weasels, polecats, stoats, ferrets, and European mink. Members of this genus are small, active predators, with long and slend ...
, European wild cat,
fox Foxes are small-to-medium-sized omnivorous mammals belonging to several genera of the family Canidae. They have a flattened skull; upright, triangular ears; a pointed, slightly upturned snout; and a long, bushy tail ("brush"). Twelve species ...
and
hare Hares and jackrabbits are mammals belonging to the genus ''Lepus''. They are herbivores and live Solitary animal, solitarily or in pairs. They nest in slight depressions called forms, and their young are precociality, able to fend for themselves ...
. The area is also rich in birdlife, including
birds of prey Birds of prey or predatory birds, also known as (although not the same as) raptors, are hypercarnivorous bird species that actively predation, hunt and feed on other vertebrates (mainly mammals, reptiles and smaller birds). In addition to speed ...
such as the Spanish imperial eagle and the Eurasian black vulture. The mountain range's proximity to
Madrid Madrid ( ; ) is the capital and List of largest cities in Spain, most populous municipality of Spain. It has almost 3.5 million inhabitants and a Madrid metropolitan area, metropolitan area population of approximately 7 million. It i ...
means it can get crowded with visitors. The range is crossed by numerous roads and railway routes. It has a highly developed tourism infrastructure, coupled with provisions for various mountain sports. This poses a threat to the fragile environment and habitats of the mountains.


Description


Etymology of the name

The name, (Guadarrama Mountains), is taken from the Guadarrama River and the town of Guadarrama, both of which are located in these mountains. The word ''Guadarrama'' itself is derived from the
Arabic Arabic (, , or , ) is a Central Semitic languages, Central Semitic language of the Afroasiatic languages, Afroasiatic language family spoken primarily in the Arab world. The International Organization for Standardization (ISO) assigns lang ...
words for 'sandy river' — composed of ''guad'' (from , meaning 'river') and ''arrama'' (from , meaning 'sandy'). Another interpretation considers unlikely that a minor river could design a vast mountain range, and makes the name derive from the Latin , meaning 'water divide', which very aptly describes the position of the sierra between the two largest water basins in the
Iberian Peninsula The Iberian Peninsula ( ), also known as Iberia, is a peninsula in south-western Europe. Mostly separated from the rest of the European landmass by the Pyrenees, it includes the territories of peninsular Spain and Continental Portugal, comprisin ...
, those of the
Douro The Douro (, , , ; ; ) is the largest river of the Iberian Peninsula by discharge. It rises near Duruelo de la Sierra in the Spanish Soria Province, province of Soria, meanders briefly south, then flows generally west through the northern par ...
, to the north, and of the
Tagus The Tagus ( ; ; ) is the longest river in the Iberian Peninsula. The river rises in the Montes Universales between Cuenca and Teruel, in mid-eastern Spain, flows , generally westward, and empties into the Atlantic Ocean in Lisbon. Name T ...
, to the south. In the Middle Ages, this mountain range was called ('dragon range') because of the profile of Siete Picos mountain.


General information

The Guadarramas form a natural division between the North and South '' mesetas'' of the
Iberian Peninsula The Iberian Peninsula ( ), also known as Iberia, is a peninsula in south-western Europe. Mostly separated from the rest of the European landmass by the Pyrenees, it includes the territories of peninsular Spain and Continental Portugal, comprisin ...
, part of the so-called
Sistema Central The Central System, Spanish language, Spanish and , is one of the main systems of mountain ranges in the Iberian Peninsula. The 2,592 m high Pico Almanzor is its highest summit. The Central System is located just north of the 40th parallel north, ...
. The mountain bases are located between 900 and 1,200 metres above sea level, and the principal peaks of the range have an average
topographic prominence In topography, prominence or relative height (also referred to as autonomous height, and shoulder drop in US English, and drop in British English) measures the height of a mountain or hill's summit relative to the lowest contour line encircling ...
of 1,000 metres. The range's highest peak, Peñalara, reaches 2,428 metres above sea level. The range begins in the valley of the
Alberche The Alberche is a river in the provinces of Ávila, Madrid and Toledo, central Spain. It begins its course at 1,800 m in Fuente Alberche, San Martín de la Vega del Alberche municipal term, Ávila Province. It forms the natural division betwee ...
river, which divides the
Sierra de Gredos The Sierra de Gredos is a mountain range in central Spain that spans the provinces of Ávila, Spain, Ávila, Salamanca, Spain, Salamanca, Cáceres, Spain, Cáceres, Madrid, and Toledo, Spain, Toledo. It is part of the much larger Sistema Central o ...
into two portions, and finishes at the Somosierra Pass, which serves as the hydrographic boundary between the river basins of the
Tagus The Tagus ( ; ; ) is the longest river in the Iberian Peninsula. The river rises in the Montes Universales between Cuenca and Teruel, in mid-eastern Spain, flows , generally westward, and empties into the Atlantic Ocean in Lisbon. Name T ...
and
Douro The Douro (, , , ; ; ) is the largest river of the Iberian Peninsula by discharge. It rises near Duruelo de la Sierra in the Spanish Soria Province, province of Soria, meanders briefly south, then flows generally west through the northern par ...
rivers. The mountains contribute
fluvial A river is a natural stream of fresh water that flows on land or inside caves towards another body of water at a lower elevation, such as an ocean, lake, or another river. A river may run dry before reaching the end of its course if it ru ...
material to both rivers through the action of various mountain streams, such as the Jarama, Guadarrama, and Manzanares, which empty into the Tagus, and the Duratón, Cega, and Eresma, which flow into the Duero. The geographical coordinates of the range's northeast terminus lies near 41° 4' North, 3° 44' West, and the southwestern end near 40° 22' North, 4° 18' West. Diverging from its main southwest-to-northeast alignment, the range has a westward-trending branch: the ("Long Rope"), or Carpetanos Mountains (Montes Carpetanos). (This name is sometimes also applied to the northern part of the main axis of the Guadarramas between Peñalara and Somosierra.) The 15 km long Carpetanos sub-range is an imposing sight, starting in the Community of Madrid at Navacerrada Pass, and averaging more than 2,000 metres in elevation all the way to the Morcuera Pass (). From there, the Carpetanos slope downward until they reach the
confluence In geography, a confluence (also ''conflux'') occurs where two or more watercourses join to form a single channel (geography), channel. A confluence can occur in several configurations: at the point where a tributary joins a larger river (main ...
of the Lozoya and Jarama rivers. The highest peak of the Cuerda Larga is the Cabezas de Hierro at 2,383 metres. Between Cuerda Larga and the main extent of the Sierra de Guadarrama lies the Lozoya valley, one of the most picturesque mountain valleys of the Sistema Central, which attracts numerous tourists in the winter for
skiing Skiing is the use of skis to glide on snow for basic transport, a recreational activity, or a competitive winter sport. Many types of competitive skiing events are recognized by the International Olympic Committee (IOC), and the International S ...
, as well as in the summer for other diversions. Another western branch of the Guadarramas, ("The Dead Woman"), or (Quintanar Mountains), begins at the Fuenfría Pass (Puerto de la Fuenfría), and is located entirely in the province of Segovia. It is 11 km long and has several
summit A summit is a point on a surface that is higher in elevation than all points immediately adjacent to it. The topographic terms acme, apex, peak (mountain peak), and zenith are synonymous. The term (mountain top) is generally used only for ...
s surpassing 2,000 metres, among them, the Montón de Trigo ("Wheat Pile"). In addition to the and , a series of small mountains or
foothills Foothills or piedmont are geography, geographically defined as gradual increases in elevation at the base of a mountain range, higher hill range or an highland, upland area. They are a transition zone between plains and low terrain, relief hill ...
are located on the periphery of the main range. Notably, in the
Segovia Segovia ( , , ) is a city in the autonomous communities of Spain, autonomous community of Castile and León, Spain. It is the capital and most populated municipality of the Province of Segovia. Segovia is located in the Meseta central, Inner Pl ...
area, there are the Cerro (hill) de las Cardosillas (1,635 m, 5,364 ft), the Cerro de Matabueyes (1,485 m, 4,872 ft), the Cerro del Caloco (1,565 m, 5,134 ft), and the Sierra de Ojos Albos (1,662 m, 5,452 ft); and, in the
Madrid Madrid ( ; ) is the capital and List of largest cities in Spain, most populous municipality of Spain. It has almost 3.5 million inhabitants and a Madrid metropolitan area, metropolitan area population of approximately 7 million. It i ...
area (from north to south), there are the Cerro de San Pedro (1,423 m, 4,668 ft), the Sierra del Hoyo (1,404 m, 4,606 ft), the Cerro Cañal (1,331 m, 4,366 ft), and Las Machotas (1,466 m, 4,809 ft).


Notable peaks

The peaks of Guadarrama have a relatively soft silhouette, with few standing out as exceptionally larger than others in the chain: * Monte Abantos (1,753 m, 5,751 ft) * Bola del Mundo (2,265 m, 7,431 ft) * Cabezas de Hierro (2,383 m, 7,818 ft), highest of the Cuerda Larga * Dos Hermanas (2,285 m, 7,496 ft) * Flecha (2,078 m, 6,807 ft) * La Maliciosa (2,227 m, 7,306 ft) * La Najarra (2,108 m, 6,916 ft) * El Nevero (2,209 m, 7,227 ft); one of the most northern peaks in the mountain range * Pandasco (2,238 m, 7,342 ft) * Peña del Águila (2,010 m, 6,594 ft) * Peñalara (2,428 m, 7,965 ft), the highest mountain of the Guadarramas * La Peñota (1,945 m, 6,381 ft) * Risco de los Claveles (2,387 m, 7,831 ft) * Risco de los Pájaros (2,334 m, 7,657 ft) * Siete Picos (2,138 m, 7,014 ft) * Montón de Trigo (2,161 m, 7,089 ft) * Cerro de Valdemartín (2,280 m, 7,480 ft) * El Yelmo (1,717 m, 5,633 ft), the most important peak of La Pedriza


Geology

The Sierra de Guadarrama is the result of a clash between
tectonic plates Plate tectonics (, ) is the scientific theory that the Earth's lithosphere comprises a number of large tectonic plates, which have been slowly moving since 3–4 billion years ago. The model builds on the concept of , an idea developed durin ...
belonging to the South sub-plateau and the North sub-plateau, both part of the Iberian Peninsula's larger ''Meseta Central'' (Central Plateau). The mountain range was formed during the
Cenozoic The Cenozoic Era ( ; ) is Earth's current geological era, representing the last 66million years of Earth's history. It is characterized by the dominance of mammals, insects, birds and angiosperms (flowering plants). It is the latest of three g ...
era (starting 66 million years ago), although the predominant material of which the mountains are composed (
granite Granite ( ) is a coarse-grained (phanerite, phaneritic) intrusive rock, intrusive igneous rock composed mostly of quartz, alkali feldspar, and plagioclase. It forms from magma with a high content of silica and alkali metal oxides that slowly coo ...
shelf tableland) was preexisting, having been laid down during the
Variscan orogeny The Variscan orogeny, or Hercynian orogeny, was a geologic mountain-building event caused by Late Paleozoic continental collision between Euramerica (Laurussia) and Gondwana to form the supercontinent of Pangaea. Nomenclature The name ''Varis ...
during the
Paleozoic The Paleozoic ( , , ; or Palaeozoic) Era is the first of three Era (geology), geological eras of the Phanerozoic Eon. Beginning 538.8 million years ago (Ma), it succeeds the Neoproterozoic (the last era of the Proterozoic Eon) and ends 251.9 Ma a ...
era when the
continental collision In geology, continental collision is a phenomenon of plate tectonics that occurs at Convergent boundary, convergent boundaries. Continental collision is a variation on the fundamental process of subduction, whereby the subduction zone is destroy ...
between Laurasia and
Gondwana Gondwana ( ; ) was a large landmass, sometimes referred to as a supercontinent. The remnants of Gondwana make up around two-thirds of today's continental area, including South America, Africa, Antarctica, Australia (continent), Australia, Zea ...
occurred to form
Pangaea Pangaea or Pangea ( ) was a supercontinent that existed during the late Paleozoic and early Mesozoic eras. It assembled from the earlier continental units of Gondwana, Euramerica and Siberia during the Carboniferous period approximately 335 mi ...
. The mountains have undergone significant erosion since their formation, which is the reason why many peaks, especially in the northern and southern sections, have flattened summits, called "cuerdas" by
mountaineers Mountaineering, mountain climbing, or alpinism is a set of outdoor activities that involves ascending mountains. Mountaineering-related activities include traditional outdoor climbing, skiing, and traversing via ferratas that have become sports ...
. For these reasons, the material making up the Sierra de Guadarrama is of more ancient origin than many other well-known mountain systems, such as the
Pyrenees The Pyrenees are a mountain range straddling the border of France and Spain. They extend nearly from their union with the Cantabrian Mountains to Cap de Creus on the Mediterranean coast, reaching a maximum elevation of at the peak of Aneto. ...
, the
Alps The Alps () are some of the highest and most extensive mountain ranges in Europe, stretching approximately across eight Alpine countries (from west to east): Monaco, France, Switzerland, Italy, Liechtenstein, Germany, Austria and Slovenia. ...
, the
Andes The Andes ( ), Andes Mountains or Andean Mountain Range (; ) are the List of longest mountain chains on Earth, longest continental mountain range in the world, forming a continuous highland along the western edge of South America. The range ...
and the
Himalayas The Himalayas, or Himalaya ( ), is a mountain range in Asia, separating the plains of the Indian subcontinent from the Tibetan Plateau. The range has some of the Earth's highest peaks, including the highest, Mount Everest. More than list of h ...
.


Formation detail

In the mid Paleozoic era (between 360 and 290 mya), an initial substratum of ancient granites and sediments started bending and metamorphizing, forming
gneiss Gneiss (pronounced ) is a common and widely distributed type of metamorphic rock. It is formed by high-temperature and high-pressure metamorphic processes acting on formations composed of igneous or sedimentary rocks. This rock is formed under p ...
. Thereafter, approximately 290 and 250 mya during the
Carboniferous period The Carboniferous ( ) is a geologic period and system of the Paleozoic era that spans 60 million years, from the end of the Devonian Period Ma (million years ago) to the beginning of the Permian Period, Ma. It is the fifth and penultimate perio ...
, the gneiss fractured, allowed a mass of
magma Magma () is the molten or semi-molten natural material from which all igneous rocks are formed. Magma (sometimes colloquially but incorrectly referred to as ''lava'') is found beneath the surface of the Earth, and evidence of magmatism has also ...
to reach the surface which ultimately hardened into a granite shelf tableland. In the final phase of the Paleozoic era, during the
Permian period The Permian ( ) is a geologic period and System (stratigraphy), stratigraphic system which spans 47 million years, from the end of the Carboniferous Period million years ago (Mya), to the beginning of the Triassic Period 251.902 Mya. It is the s ...
, the tectonic plate collision causing the whole mountain range to rise. Finally, during the end of the Paleozoic through the
Mesozoic era The Mesozoic Era is the era of Earth's geological history, lasting from about , comprising the Triassic, Jurassic and Cretaceous Periods. It is characterized by the dominance of archosaurian reptiles such as the dinosaurs, and of gymnosperms s ...
(between 250 and 65 mya) and up to the present, ongoing
erosion Erosion is the action of surface processes (such as Surface runoff, water flow or wind) that removes soil, Rock (geology), rock, or dissolved material from one location on the Earth's crust#Crust, Earth's crust and then sediment transport, tran ...
processes reduced the size and smoothed and rounded the profile of the mountains of the Guadarramas. It was also during this
geologic era The geologic time scale or geological time scale (GTS) is a representation of time based on the rock record of Earth. It is a system of chronological dating that uses chronostratigraphy (the process of relating strata to time) and geochronolo ...
that an ocean shift took place, causing the present-day location of the mountains to be part of the ocean for a time. It is possible that the then-peak formations were only small islands, barely rising above the level of the ocean. This accounts for the presence of
limestone Limestone is a type of carbonate rock, carbonate sedimentary rock which is the main source of the material Lime (material), lime. It is composed mostly of the minerals calcite and aragonite, which are different Polymorphism (materials science) ...
(a
sedimentary rock Sedimentary rocks are types of rock (geology), rock formed by the cementation (geology), cementation of sediments—i.e. particles made of minerals (geological detritus) or organic matter (biological detritus)—that have been accumulated or de ...
formed predominately from
calcite Calcite is a Carbonate minerals, carbonate mineral and the most stable Polymorphism (materials science), polymorph of calcium carbonate (CaCO3). It is a very common mineral, particularly as a component of limestone. Calcite defines hardness 3 on ...
derived from marine organisms) found in the rims of Guadaramma mountain peaks and in some of their interior caves. Limestone formations are evident at a number of the peaks, notably ''El Vellón'', ''La Pinilla'' and ''Patones''. Other processes were in play during the Cenozoic era that shaped the present form of the Guadarramas. The erosion of the rocky
massif A massif () is a principal mountain mass, such as a compact portion of a mountain range, containing one or more summits (e.g. France's Massif Central). In mountaineering literature, ''massif'' is frequently used to denote the main mass of an ...
provoked sedimentation which filled the mountain basins with
sandstone Sandstone is a Clastic rock#Sedimentary clastic rocks, clastic sedimentary rock composed mainly of grain size, sand-sized (0.0625 to 2 mm) silicate mineral, silicate grains, Cementation (geology), cemented together by another mineral. Sand ...
. The action of glaciers during the
Quaternary Period The Quaternary ( ) is the current and most recent of the three periods of the Cenozoic Era in the geologic time scale of the International Commission on Stratigraphy (ICS), as well as the current and most recent of the twelve periods of the ...
(1.8 mya up to the present) shaped several mountain profiles with small
cirque A (; from the Latin word ) is an amphitheatre-like valley formed by Glacier#Erosion, glacial erosion. Alternative names for this landform are corrie (from , meaning a pot or cauldron) and ; ). A cirque may also be a similarly shaped landform a ...
s, carved
glacial lake A glacial lake is a body of water with origins from glacier activity. They are formed when a glacier erodes the land and then melts, filling the depression created by the glacier. Formation Near the end of the last glacial period, roughly 10,0 ...
s and left behind
moraine A moraine is any accumulation of unconsolidated debris (regolith and Rock (geology), rock), sometimes referred to as glacial till, that occurs in both currently and formerly glaciated regions, and that has been previously carried along by a gla ...
s. All three features can be found on Peñalara. Additionally, some traces of glacial passage are found in ''El Nevero'' and '' La Maliciosa'' in the form of sheepback-grooved rocks and small cirques. Finally, in the last million years, the action of glaciers caused consolidation of the network of rivers crisscrossing the mountain slopes, carved valleys and terraces resulting in the current appearance of the landscape.


Principal cities and towns

The Sierra de Guadarrama is surrounded by prominent population centres, which feature many second residences, occupied during holiday periods. The population pressure on and nearby the southeast slopes of the mountains near the
Community of Madrid The Community of Madrid (; ) is one of the seventeen autonomous communities and 50 provinces of Spain, provinces of Spain. It is located at the heart of the Iberian Peninsula and Meseta Central, Central Plateau (); its capital and largest munici ...
is very high, motivated partly by the large quantity of people who wish to live near the mountains. The most important cities are
San Lorenzo de El Escorial San Lorenzo de El Escorial, also known as El Escorial de Arriba, is a town and municipality in the Community of Madrid, Spain, located to the northwest of the region in the southeastern side of the Sierra de Guadarrama, at the foot of Moun ...
, Guadarrama,
Navacerrada Navacerrada is a municipality of the Community of Madrid, Spain. It lies at an elevation of on the Reservoir Navacerrada and the entry of the valley of La Barranca in the Sierra de Guadarrama. Located from Madrid, it has only 2,500 permane ...
, Cercedilla, Manzanares el Real,
Miraflores de la Sierra Miraflores de la Sierra () is a town and municipality in the northern area of the autonomous Community of Madrid, in central Spain, of c. 6,000 inhabitants, located 49 kilometers away from Madrid. History Miraflores de la Sierra, formerly known a ...
and
Rascafría Rascafría is a municipality of the Community of Madrid The Community of Madrid (; ) is one of the seventeen autonomous communities and 50 provinces of Spain, provinces of Spain. It is located at the heart of the Iberian Peninsula and Meseta ...
in the Community of Madrid, and Los Ángeles de San Rafael and San Ildefonso in the province of Segovia. These towns are departure points for accessing the nearby mountain slopes and function as a centre of the tourism trade providing lodgings, restaurants and stores for visitors. Although these
municipalities A municipality is usually a single administrative division having municipal corporation, corporate status and powers of self-government or jurisdiction as granted by national and regional laws to which it is subordinate. The term ''municipality' ...
are located at the feet of the mountains, they are situated below 1,200 meters. The Sierra de Guadarrama serves as backdrop for the cities of Madrid and Segovia, although Segovia is located closer to the peaks than is Madrid.


Places of interest

The Sierra de Guadarrama has a series of valleys and zones which are of special interest from both an
aesthetic Aesthetics (also spelled esthetics) is the branch of philosophy concerned with the nature of beauty and taste, which in a broad sense incorporates the philosophy of art.Slater, B. H.Aesthetics ''Internet Encyclopedia of Philosophy,'' , acces ...
and
ecological Ecology () is the natural science of the relationships among living organisms and their environment. Ecology considers organisms at the individual, population, community, ecosystem, and biosphere levels. Ecology overlaps with the closely re ...
viewpoint. Due to the proximity of Madrid's metropolitan area to the Guadarramas, many such special interest zones are host to a large number of mountain climbers and general interest tourists the year round. The most heavily visited areas are the '' Parque Natural de Peñalara'' (Peñalara Natural Park) and La Pedriza, an unusual mountain formation. ;Valle (valley) de la Fuenfría:An eastern valley in Cercedilla, the Community of Madrid, featuring one of the better preserved wild pine forests of the mountains. The valleys faces in a north to south direction, has a length of approximately 5 km, a width of approximately 2 km and is located between Siete Picos and the edge of the province of Segovia. The valley's dense forest features a deep creek and a well-preserved, ancient
Roman road Roman roads ( ; singular: ; meaning "Roman way") were physical infrastructure vital to the maintenance and development of the Roman state, built from about 300 BC through the expansion and consolidation of the Roman Republic and the Roman Em ...
that crosses the mountain running toward the Fuenfría Pass. On weekends and holidays the valley is flooded with tourists and mountain climbers who debark at a recreation area with a car park at the valley's lower edge. ;Valle de Valsaín ;:Like the Fuenfría, the Valsaín valley is also covered by a well-preserved pine tree woodland, considered the best of the Guadarramas. It is a wide, sloped valley running in a north to south direction, having a length of approximately 10 km, an average width of 5 km, and is located between the mountains, Mujer Muerta and the bulk of Peñalara. On its lower slopes is the municipality of Valsain, named after the valley. In the heart of the valley, amidst the pine and
oak An oak is a hardwood tree or shrub in the genus ''Quercus'' of the beech family. They have spirally arranged leaves, often with lobed edges, and a nut called an acorn, borne within a cup. The genus is widely distributed in the Northern Hemisp ...
groves, there are three separate recreation centers, each with areas for parking. Nearby these areas are a number of human-made Eresma river dams that create small pools suitable for bathing in the summer. Several paths begin in the recreation area that crisscross the whole of the woodsy valley. ;La Pedriza:'' The Pedriza'' is one of the more exceptional areas of the mountain range. It is located on the south slope of the ''Cuerda Larga'', in the municipal area of ''Manzanares el Real'' (part of the
province of Madrid The Community of Madrid (; ) is one of the seventeen autonomous communities and 50 provinces of Spain, provinces of Spain. It is located at the heart of the Iberian Peninsula and Meseta Central, Central Plateau (); its capital and largest munici ...
) and inside the ''Parque Regional'' (Regional Park) ''de la Cuenca Alta del Manzanares''. The Pedriza's landscape is noted for its enormous rock formations and walls of
granite Granite ( ) is a coarse-grained (phanerite, phaneritic) intrusive rock, intrusive igneous rock composed mostly of quartz, alkali feldspar, and plagioclase. It forms from magma with a high content of silica and alkali metal oxides that slowly coo ...
displaying unusual and eye-catching configurations. Below the high rocky areas is an underbrush made up of rockroses and savin junipers which become a pine thicket farther way from the rock face. At the heart of the small valleys that make up La Pedriza runs the Manzanares river at the high
river basin A drainage basin is an area of land in which all flowing surface water converges to a single point, such as a river mouth, or flows into another body of water, such as a lake or ocean. A basin is separated from adjacent basins by a perimeter, th ...
of its course. In the low part of the area is a recreational area with parking accommodations which allows visitors several routes to cross the territory. The most esteemed and sensational peak of La Pedriza, as well as its largest, is ''El Yelmo'' (The Helmet), a gigantic granite rockface towering over the surrounding peaks, rising to 1,700 m in elevation. El Yelmo's south face presents a massive stone wall that is highly prized by advanced mountain climbers. Throughout its history, La Pedriza's complex of caves was used as a hideout by
exile Exile or banishment is primarily penal expulsion from one's native country, and secondarily expatriation or prolonged absence from one's homeland under either the compulsion of circumstance or the rigors of some high purpose. Usually persons ...
s and by those seeking shelter during times of war. ;Peñalara's cirques and lakes: On the south slope of the Sierra de Guadarrama's highest peak, Peñalara (2,428 m), is a protected area considered to be of exceptional beauty and which has been declared a
nature reserve A nature reserve (also known as a wildlife refuge, wildlife sanctuary, biosphere reserve or bioreserve, natural or nature preserve, or nature conservation area) is a protected area of importance for flora, fauna, funga, or features of geologic ...
under the title ''Parque Natural de Peñalara''; the only area of the Guadarramas to receive such official designation. In the reserve are found, three cirques and a series of lakes, all the handiwork of ancient
glacial A glacier (; or ) is a persistent body of dense ice, a form of rock, that is constantly moving downhill under its own weight. A glacier forms where the accumulation of snow exceeds its ablation over many years, often centuries. It acquires ...
action. Peñalara's cirques take the form of walls rising more than 300 meters in the shape of a "U". Several small lakes are found in the areas surrounding the cirques, up to a height of approximately 2,000 m, which give rise to streams and small waterfalls during spring thaws. Most outstanding of these are the '' Laguna Grande'' (Big Lagoon), the ''Laguna Chica'' (Small Lagoon), the ''Lagunas de los Claveles'' (Lagoons of the Carnations) and the ''Laguna de los Pájaros'' (Lagoon of the Birds). Below 2,000 m, wild pine forests are also found in the designated zone. In the heights of the nature reserve are prairies in which high mountain
shrub A shrub or bush is a small to medium-sized perennial woody plant. Unlike herbaceous plants, shrubs have persistent woody stems above the ground. Shrubs can be either deciduous or evergreen. They are distinguished from trees by their multiple ...
s dominate the terrain. The reserve is accessed by three routes feeding to and from the '' Puerto de Cotos''. ;Valle del Lozoya:The Valle del Lozoya is the most extensive valley of the Sierra de Guadarrama range and one of the best conserved. It is located entirely within the Community of Madrid, between the Cuerda Larga and the main alignment of the mountain system, running in a southwest to northeast direction, and located, with respect the range as a whole, at its northeast stretch. The valley is more than 25 km in length and 6 km in average width. The slopes of the valley are covered with wild pine, oak and
chestnut The chestnuts are the deciduous trees and shrubs in the genus ''Castanea'', in the beech family Fagaceae. The name also refers to the edible nuts they produce. They are native to temperate regions of the Northern Hemisphere. Description ...
forests. By contrast, the lower valley area is dominated by grass pastures and farm crops. In the heart of the valley are two towns: Rascafría and Lozoya, both of which lend their names to the two rivers that run through the valley.


Hydrography

The climate of the Sierra de Guadarrama is marked by heavy
precipitation In meteorology, precipitation is any product of the condensation of atmospheric water vapor that falls from clouds due to gravitational pull. The main forms of precipitation include drizzle, rain, rain and snow mixed ("sleet" in Commonwe ...
which gives birth to the territory's numerous streams and rivers. There are several rivers of special relevance. The range's Segovia facing slopes give rise to the Moros and Eresma rivers, with the latter flowing through the City of
Segovia Segovia ( , , ) is a city in the autonomous communities of Spain, autonomous community of Castile and León, Spain. It is the capital and most populated municipality of the Province of Segovia. Segovia is located in the Meseta central, Inner Pl ...
. The Madrid facing slopes give rise to the Guadarrama river (from which the range and the town of Guadarrama take their names), the Manzanares river, that passes by Madrid, and the Lozoya river (location of the El Atazar Dam), that passes by its namesake valley. On the South slope of the peak of Peñalara, at 2,200 m of elevation, there is a series of small, protected lakes of
glacial A glacier (; or ) is a persistent body of dense ice, a form of rock, that is constantly moving downhill under its own weight. A glacier forms where the accumulation of snow exceeds its ablation over many years, often centuries. It acquires ...
origin. Although the mountain range proper features a great number of
dams A dam is a barrier that stops or restricts the flow of surface water or underground streams. Reservoirs created by dams not only suppress floods but also provide water for activities such as irrigation, human consumption, industrial use, ...
, they are all of small volume. In the Segovia facing slopes, the more prominent dams are Peces, Revenga, Pontón and Pirón, while on the Madrid facing slopes are found the Tobar, Jarosa, Navacerrada and Pinilla. Outside the boundaries of the mountain range, in the Community of Madrid, there are three dams of much greater size: the Valmayor, Santillana and Pardo.


Flora and fauna

The flora and fauna of the Sierra de Guadarrama is very diverse, reflecting something of a synthesis between species common to the
mediterranean The Mediterranean Sea ( ) is a sea connected to the Atlantic Ocean, surrounded by the Mediterranean basin and almost completely enclosed by land: on the east by the Levant in West Asia, on the north by Anatolia in West Asia and Southern ...
landscape and climate of Spain's Central Plateau, and the more specialized plants and animals native to the higher altitude and mountainous terrain of the
Pyrenees The Pyrenees are a mountain range straddling the border of France and Spain. They extend nearly from their union with the Cantabrian Mountains to Cap de Creus on the Mediterranean coast, reaching a maximum elevation of at the peak of Aneto. ...
and
Alps The Alps () are some of the highest and most extensive mountain ranges in Europe, stretching approximately across eight Alpine countries (from west to east): Monaco, France, Switzerland, Italy, Liechtenstein, Germany, Austria and Slovenia. ...
.


Flora

The high slopes of the mountains are covered in Alpine grasses and are extensively used as grazing land for cattle. The meat that these cattle produce is of excellent quality and is specially denominated and certified as ''Ternera de Guadarrama'' ("Veal of Guadarrama"). Below the high mountain pastures, in the subalpine and mountainous flats, are some of the best natural
scots pine ''Pinus sylvestris'', the Scots pine (UK), Scotch pine (US), Baltic pine, or European red pine is a species of tree in the pine family Pinaceae that is native to Eurasia. It can readily be identified by its combination of fairly short, blue-gr ...
(''Pinus sylvestris'') forests in Spain. Below the pine forests, the middle elevations are covered by groves of Pyrenean oak (''Quercus pyrenaica''), which sometimes encroach on the higher pine belt; this is problematic as Pyrenean oak have a protected conservation status and cannot be felled without dispensation from national park authorities. Nevertheless, controlled logging is allowed every year with the felled trees used to supply
firewood Firewood is any wooden material that is gathered and used for fuel. Generally, firewood is not heavily processed, and is in some sort of firelog, recognizable log or branch form, compared to other forms of wood fuel like pellet fuel, pellets. ...
to local mountain villages. The westernmost area of the mountain range shows a change in species distribution and variety, with a predominance of
stone pine The Italian stone pine, botanical name ''Pinus pinea'', also known as the Mediterranean stone pine is a tree from the pine family (''Pinaceae''). The tree is native to the Mediterranean region, occurring in Southern Europe and the Levant. The ...
(''Pinus pinea'') in place of scots-pine, and Portuguese oak and Holm oak in place of Pyrenean oak due to the lower elevations and higher precipitation of the region.


List of plant species

;Trees:
European black pine ''Pinus nigra'', the Austrian pine or black pine, is a moderately variable species of pine, occurring across Southern Europe from the Iberian Peninsula and Lower Austria to the eastern Mediterranean, on the Anatolian peninsula of Turkey, Corsica ...
, maritime pine,
Scots pine ''Pinus sylvestris'', the Scots pine (UK), Scotch pine (US), Baltic pine, or European red pine is a species of tree in the pine family Pinaceae that is native to Eurasia. It can readily be identified by its combination of fairly short, blue-gr ...
and
mountain pine ''Pinus mugo'', known as dwarf mountain pine, mountain pine, scrub mountain pine, Swiss mountain pine, bog pine, creeping pine, or mugo pine, is a species of conifer, native to high elevation habitats from southwestern to Central Europe and So ...
;
holly ''Ilex'' () or holly is a genus of over 570 species of flowering plants in the family Aquifoliaceae, and the only living genus in that family. ''Ilex'' has the most species of any woody dioecious angiosperm genus. The species are evergreen o ...
,
alder Alders are trees of the genus ''Alnus'' in the birch family Betulaceae. The genus includes about 35 species of monoecious trees and shrubs, a few reaching a large size, distributed throughout the north temperate zone with a few species ex ...
,
maple ''Acer'' is a genus of trees and shrubs commonly known as maples. The genus is placed in the soapberry family Sapindaceae.Stevens, P. F. (2001 onwards). Angiosperm Phylogeny Website. Version 9, June 2008 nd more or less continuously updated si ...
,
hazel Hazels are plants of the genus ''Corylus'' of deciduous trees and large shrubs native to the temperate Northern Hemisphere. The genus is usually placed in the birch family, Betulaceae,Germplasmgobills Information Network''Corylus''Rushforth, K ...
,
boxwood ''Buxus'' is a genus of about seventy species in the family Buxaceae. Common names include box and boxwood. The boxes are native to western and southern Europe, southwest, southern and eastern Asia, Africa, Madagascar, northernmost So ...
,
beech Beech (genus ''Fagus'') is a genus of deciduous trees in the family Fagaceae, native to subtropical (accessory forest element) and temperate (as dominant element of Mesophyte, mesophytic forests) Eurasia and North America. There are 14 accepted ...
, holm oak, Portuguese oak, Pyrenean oak, savin junipers,
rowan The rowans ( or ) or mountain-ashes are shrubs or trees in the genus ''Sorbus'' of the rose family, Rosaceae. They are native throughout the cool temperate regions of the Northern Hemisphere, with the highest species diversity in the Himalaya ...
and yew. ;Shrubs: tree heath, French lavender, common juniper, bearberry,
fern The ferns (Polypodiopsida or Polypodiophyta) are a group of vascular plants (plants with xylem and phloem) that reproduce via spores and have neither seeds nor flowers. They differ from mosses by being vascular, i.e., having specialized tissue ...
, rockroses,
common hawthorn ''Crataegus monogyna'', known as common hawthorn, whitethorn, one-seed hawthorn, or single-seeded hawthorn, is a species of flowering plant in the rose family, Rosaceae. It grows to about tall, producing hermaphrodite flowers in late spring. Th ...
,
Fabaceae Fabaceae () or Leguminosae,International Code of Nomen ...
, boiss,
rosemary ''Salvia rosmarinus'' (), commonly known as rosemary, is a shrub with fragrant, evergreen, needle-like leaves and white, pink, purple, or blue flowers. It is a member of the sage family, Lamiaceae. The species is native to the Mediterranean r ...
and
thyme Thyme () is a culinary herb consisting of the dried aerial parts of some members of the genus ''Thymus (plant), Thymus'' of flowering plants in the mint family Lamiaceae. Thymes are native to Eurasia and north Africa. Thymes have culinary, medici ...
. ;Prevalent pine grove fungi:
morel ''Morchella'', the true morels, is a genus of edible sac fungi closely related to anatomically simpler cup fungi in the order Pezizales ( division Ascomycota). These distinctive fungi have a honeycomb appearance due to the network of ridges ...
, saffron milk cap, '' Lepiota'',
chanterelle Chanterelle is the common name of several species of fungi in the genera ''Cantharellus'', ''Craterellus'', ''Gomphus (fungus), Gomphus'', and ''Polyozellus''. They are orange, yellow or white, meaty and funnel-shaped. On the lower surface, mos ...
and king trumpet mushroom.


Fauna

As might be expected in such an important ecosystem, there is a great variety of wildlife, with mammals such as Iberian ibex, roe deer,
fallow deer Fallow deer is the common name for species of deer in the genus ''Dama'' of subfamily Cervinae. There are two living species, the European fallow deer (''Dama dama''), native to Europe and Anatolia, and the Persian fallow deer (''Dama mesopotamic ...
,
wild boar The wild boar (''Sus scrofa''), also known as the wild swine, common wild pig, Eurasian wild pig, or simply wild pig, is a Suidae, suid native to much of Eurasia and North Africa, and has been introduced to the Americas and Oceania. The speci ...
,
badger Badgers are medium-sized short-legged omnivores in the superfamily Musteloidea. Badgers are a polyphyletic rather than a natural taxonomic grouping, being united by their squat bodies and adaptions for fossorial activity rather than by the ...
, various types of
weasel Weasels are mammals of the genus ''Mustela'' of the family Mustelidae. The genus ''Mustela'' includes the least weasels, polecats, stoats, ferrets, and European mink. Members of this genus are small, active predators, with long and slend ...
, European wild cat,
fox Foxes are small-to-medium-sized omnivorous mammals belonging to several genera of the family Canidae. They have a flattened skull; upright, triangular ears; a pointed, slightly upturned snout; and a long, bushy tail ("brush"). Twelve species ...
and
hare Hares and jackrabbits are mammals belonging to the genus ''Lepus''. They are herbivores and live Solitary animal, solitarily or in pairs. They nest in slight depressions called forms, and their young are precociality, able to fend for themselves ...
among others. Birds are also well represented with such specialities as citril finch and crested tit as well as the usual waterfowl, especially in the ''Embalse de Santillana'' ( Santillana reservoir).
Birds of prey Birds of prey or predatory birds, also known as (although not the same as) raptors, are hypercarnivorous bird species that actively predation, hunt and feed on other vertebrates (mainly mammals, reptiles and smaller birds). In addition to speed ...
include the impressive Spanish imperial eagle and Eurasian black vulture. In fact, the animal species inhabiting the Guadarramas represent 45% of the fauna of Spain and 18% of those in Europe as a whole. The Guadarramas are also a migration route for many species of bird including crane and black stork. Endangered species that inhabit the range include Spanish imperial eagle and the
Eurasian wolf The Eurasian wolf (''Canis lupus lupus''), also known as the common wolf,Mech, L. David (1981), ''The Wolf: The Ecology and Behaviour of an Endangered Species'', University of Minnesota Press, p. 354, is a subspecies of grey wolf native to Euro ...
.


List of animal species

;Reptiles and amphibians: Various
snake Snakes are elongated limbless reptiles of the suborder Serpentes (). Cladistically squamates, snakes are ectothermic, amniote vertebrates covered in overlapping scales much like other members of the group. Many species of snakes have s ...
s both smooth and viperous, the Iberian endemic mountain lizard ('' Iberolacerta cyreni''), alpine newt and
fire salamander The fire salamander (''Salamandra salamandra'') is a common species of salamander found in Europe. It is black with yellow spots or stripes to a varying degree; some specimens can be nearly completely black while on others the yellow is dominant ...
;Mammals:
Squirrel Squirrels are members of the family Sciuridae (), a family that includes small or medium-sized rodents. The squirrel family includes tree squirrels, ground squirrels (including chipmunks and prairie dogs, among others), and flying squirrel ...
,
weasel Weasels are mammals of the genus ''Mustela'' of the family Mustelidae. The genus ''Mustela'' includes the least weasels, polecats, stoats, ferrets, and European mink. Members of this genus are small, active predators, with long and slend ...
, Iberian ibex,
rabbit Rabbits are small mammals in the family Leporidae (which also includes the hares), which is in the order Lagomorpha (which also includes pikas). They are familiar throughout the world as a small herbivore, a prey animal, a domesticated ...
, roe deer, genet,
boar The wild boar (''Sus scrofa''), also known as the wild swine, common wild pig, Eurasian wild pig, or simply wild pig, is a Suidae, suid native to much of Eurasia and North Africa, and has been introduced to the Americas and Oceania. The speci ...
,
hare Hares and jackrabbits are mammals belonging to the genus ''Lepus''. They are herbivores and live Solitary animal, solitarily or in pairs. They nest in slight depressions called forms, and their young are precociality, able to fend for themselves ...
,
garden dormouse The garden dormouse (''Eliomys quercinus'') is a species of dormouse native to Europe. Characteristics The garden dormouse is gray or brown, with a whitish underside. It has black eye markings and large ears. Its hair is short, and its tail ha ...
,
Eurasian wolf The Eurasian wolf (''Canis lupus lupus''), also known as the common wolf,Mech, L. David (1981), ''The Wolf: The Ecology and Behaviour of an Endangered Species'', University of Minnesota Press, p. 354, is a subspecies of grey wolf native to Euro ...
,
badger Badgers are medium-sized short-legged omnivores in the superfamily Musteloidea. Badgers are a polyphyletic rather than a natural taxonomic grouping, being united by their squat bodies and adaptions for fossorial activity rather than by the ...
and
fox Foxes are small-to-medium-sized omnivorous mammals belonging to several genera of the family Canidae. They have a flattened skull; upright, triangular ears; a pointed, slightly upturned snout; and a long, bushy tail ("brush"). Twelve species ...
;Birds: Citril finch, Iberian pied flycatcher, southern grey shrike,
European bee-eater The European bee-eater (''Merops apiaster'') is a near passerine bird in the bee-eater family, Meropidae. It breeds in southern and central Europe, northern and southern Africa, and western Asia. Except for the resident southern African populat ...
,
hoopoe Hoopoes () are colourful birds found across Africa, Asia, and Europe, notable for their distinctive "Crest (feathers), crown" of feathers which can be raised or lowered at will. Two living and one extinct species are recognized, though for many y ...
,
short-toed treecreeper The short-toed treecreeper (''Certhia brachydactyla'') is a small passerine bird found in woodlands through much of the warmer regions of Europe and into north Africa. It has a generally more southerly distribution than the other European Certhi ...
, jay,
great tit The great tit (''Parus major'') is a small passerine bird in the tit family Paridae. It is a widespread and common species throughout Europe, the Middle East, Central Asia and east across the Palearctic to the Amur River, south to parts of No ...
,
Eurasian woodcock The Eurasian woodcock (''Scolopax rusticola'') is a medium-small wader, wading bird found in temperate and subarctic Palearctic realm, Eurasia. It has Camouflage#Cryptic coloration in nature, cryptic camouflage to suit its woodland habitat, with ...
,
wren Wrens are a family, Troglodytidae, of small brown passerine birds. The family includes 96 species and is divided into 19 genera. All species are restricted to the New World except for the Eurasian wren that is widely distributed in the Old Worl ...
,
chough A chough ( ) is any of two species of passerine birds that constitute the genus ''Pyrrhocorax'' of the Corvidae (crow) family. These are the red-billed chough (''Pyrrhocorax pyrrhocorax'') and the Alpine chough (or yellow-billed chough) (''Pyr ...
, crested tit,
blue tit The Eurasian blue tit (''Cyanistes caeruleus'') is a small passerine bird in the tit (bird), tit family, Paridae. It is easily recognizable by its blue and yellow plumage and small size. Eurasian blue tits, usually resident bird, resident a ...
,
kingfisher Kingfishers are a family, the Alcedinidae, of small to medium-sized, brightly coloured birds in the order Coraciiformes. They have a cosmopolitan distribution, with most species living in the tropical regions of Africa, Asia, and Oceania, ...
,
white-throated dipper The white-throated dipper (''Cinclus cinclus''), also known as the European dipper or just dipper, is an aquatic passerine bird found in Europe, Middle East, Central Asia and the Indian Subcontinent. The species is divided into several subspecies ...
, blackbird, firecrest, golden oriole,
European robin The European robin (''Erithacus rubecula''), known simply as the robin or robin redbreast in the British Isles, is a small insectivorous passerine bird that belongs to the Old World flycatcher family Muscicapidae. It is found across Europe, ea ...
:;Birds of prey:
Golden eagle The golden eagle (''Aquila chrysaetos'') is a bird of prey living in the Northern Hemisphere. It is the most widely distributed species of eagle. Like all eagles, it belongs to the family Accipitridae. They are one of the best-known bird of pr ...
,
booted eagle The booted eagle (''Hieraaetus pennatus'', also classified as ''Aquila pennata'') is a medium-sized mostly migratory bird of prey with a wide distribution in the Palearctic and southern Asia, wintering in the tropics of Africa and Asia, with a ...
and short-toed eagle, Eurasian black vulture and
griffon vulture The Eurasian griffon vulture (''Gyps fulvus'') is a large Old World vulture in the bird of prey family Accipitridae. It is also known as the griffon vulture, although this term is sometimes used for the genus as a whole. It is not to be confuse ...
, eagle owl,
tawny owl The tawny owl (''Strix aluco''), also called the brown owl, is a stocky, medium-sized owl in the family Strigidae. It is commonly found in woodlands across Europe, as well as western Siberia, and has seven recognized subspecies. The tawny owl' ...
and
little owl The little owl (''Athene noctua''), also known as the owl of Athena or owl of Minerva, is a bird that inhabits much of the temperate and warmer parts of Europe, the Palearctic east to Korea, and North Africa. It was introduced into Britain at t ...
,
peregrine falcon The peregrine falcon (''Falco peregrinus''), also known simply as the peregrine, is a Cosmopolitan distribution, cosmopolitan bird of prey (raptor) in the family (biology), family Falconidae renowned for its speed. A large, Corvus (genus), cro ...
,
red kite The red kite (''Milvus milvus'') is a bird of prey in the family Accipitridae, which also includes many other Diurnality, diurnal Bird of prey, raptors such as eagles, buzzards, and harrier (bird), harriers. The species currently breeds only i ...
and both
common Common may refer to: As an Irish surname, it is anglicised from Irish Gaelic surname Ó Comáin. Places * Common, a townland in County Tyrone, Northern Ireland * Boston Common, a central public park in Boston, Massachusetts * Cambridge Com ...
and honey buzzard :;Waterfowl:
Mallard The mallard () or wild duck (''Anas platyrhynchos'') is a dabbling duck that breeds throughout the temperate and subtropical Americas, Eurasia, and North Africa. It has been introduced to New Zealand, Australia, Peru, Brazil, Uruguay, Arge ...
,
coot Coots are medium-sized water birds that are members of the rail family, Rallidae. They constitute the genus ''Fulica'', the name being the Latin term for "coot". Coots have predominantly black plumage, and—unlike many rails—they are usual ...
,
grey heron The grey heron (''Ardea cinerea'') is a long-legged wading bird of the heron family, Ardeidae, native throughout temperate Europe and Asia, and also parts of Africa. It is resident in much of its range, but some populations from the more norther ...
and little and
great crested grebe The great crested grebe (''Podiceps cristatus'') is a member of the grebe family of water birds. The bird is characterised by its distinctive appearance, featuring striking black, orange-brown, and white plumage, and elaborate courtship displa ...


Climate

The Guadarramas have climatic features, characterized by considerable temperatures changes between summer and winter and a very dry summer. But, as in any mountainous zone, the climate on the mountains proper changes markedly with increases in height, and can be differentiated into discrete climatic zones. Between 800m and 1,400m, the average annual temperature varies from 9 °C to 13 °C, with a summer high of 28 °C and winter low of -3 °C. Average annual
precipitation In meteorology, precipitation is any product of the condensation of atmospheric water vapor that falls from clouds due to gravitational pull. The main forms of precipitation include drizzle, rain, rain and snow mixed ("sleet" in Commonwe ...
is between 500 and 800 mm, predominately in non-summer months. At this elevation, much of the precipitation falls as snow, between December and February, although there are always exceptions, and the snow rarely remains unmelted for more than three days. It is in this region that all cities and the majority of people live; this also means that of all distinguished elevations, it is the most susceptible to damage from human traffic and intrusion. Between 1,400 and 2,000 m, the average annual temperature is 6-9 °C, with a summer high of 25 °C and winter low of -8 °C. Average annual precipitation increases with the height to 700–1,300 mm, again primarily during the non-summer season in the form of snow, but between December and April. Much of the snow remains on the ground for the duration of the winter, especially on the range's north slope. Between 2,000 and 2,428 m, the average annual temperature is between 4-6 °C, with a summer high of 20 °C and a winter low of -12 °C. Average annual precipitation is between 1,200 and 2,500 mm, mostly snowfall between November and May which remains all winter and into the spring. In summary, the climate of the Guadarramas is quite humid, more so than that of the rest of the ''Meseta Central'' (Central Plateau), and generally cold, increasing with elevation. In the peaks the wind is usually very intense and thunderstorms in the mountains are more frequent than in the plateau.


Average temperatures by elevation


Through routes

As it forms a natural barrier, the Guadarramas is crossed by important routes through the mountains linking the north and south of the Iberian Peninsula. The routes date back to Roman times with the construction of their famous
roads A road is a thoroughfare used primarily for movement of traffic. Roads differ from streets, whose primary use is local access. They also differ from stroads, which combine the features of streets and roads. Most modern roads are paved. The ...
, one of which starts in the town of Cercedilla, crosses the mountains and terminates at the Fuenfría Pass. Although the road is still present with some original stone, it was rendered obsolete by roads built during the mid-18th century: the Guadarrama Pass, or "del León" route, serviced by national highway six, running from Madrid to Coruña (although another freeway, AP-6, which tunnels through the mountains, can also be used); the Navacerrada Pass highway passage between Madrid and Segovia; and the Somosierra pass, through which runs the Autovía del Norte, along with the Madrid to
Irun Irun (, ) is a town of the Bidasoaldea region in the province of Gipuzkoa in the Basque Autonomous Community, Spain. History It lies on the foundations of the ancient Oiasso, cited as a Roman- Vasconic town. During the Spanish Civil War, ...
railway. The mountains are crossed by separate rail routes between
Madrid Madrid ( ; ) is the capital and List of largest cities in Spain, most populous municipality of Spain. It has almost 3.5 million inhabitants and a Madrid metropolitan area, metropolitan area population of approximately 7 million. It i ...
and
Ávila Ávila ( , , ) is a Spanish city located in the autonomous community of Castile and León. It is the capital and most populated municipality of the Province of Ávila. It lies on the right bank of the Adaja river. Located more than 1,130 m a ...
,
Segovia Segovia ( , , ) is a city in the autonomous communities of Spain, autonomous community of Castile and León, Spain. It is the capital and most populated municipality of the Province of Segovia. Segovia is located in the Meseta central, Inner Pl ...
and
Burgos Burgos () is a city in Spain located in the autonomous community of Castile and León. It is the capital and most populous municipality of the province of Burgos. Burgos is situated in the north of the Iberian Peninsula, on the confluence of th ...
, connecting the capital to the north of the country. These lines are already considered antiquated, and will be partially replaced with the new high speed Alta Velocidad Española ("Spanish High Speed") trains, with tunnels between Miraflores de la Sierra and Segovia. The AVE can achieve speeds of up to 300 km/h on dedicated tracks. The AVE route between Madrid and Segovia is already open, and the network is slowly being expanded further north.


History

For much of its history, the central part of the range – including the forests and
grassland A grassland is an area where the vegetation is dominance (ecology), dominated by grasses (Poaceae). However, sedge (Cyperaceae) and rush (Juncaceae) can also be found along with variable proportions of legumes such as clover, and other Herbaceo ...
s on both sides of the mountains – was associated with the city of Segovia, at least as far back as its
Roman Roman or Romans most often refers to: *Rome, the capital city of Italy *Ancient Rome, Roman civilization from 8th century BC to 5th century AD *Roman people, the people of Roman civilization *Epistle to the Romans, shortened to Romans, a letter w ...
control under the name of '' Segóbriga''. However, after the creation of the
province of Madrid The Community of Madrid (; ) is one of the seventeen autonomous communities and 50 provinces of Spain, provinces of Spain. It is located at the heart of the Iberian Peninsula and Meseta Central, Central Plateau (); its capital and largest munici ...
to meet the requirements of the Spanish Court, the political designation of the mountains was distributed between the two provinces. Today the range is more often associated with
Madrid Madrid ( ; ) is the capital and List of largest cities in Spain, most populous municipality of Spain. It has almost 3.5 million inhabitants and a Madrid metropolitan area, metropolitan area population of approximately 7 million. It i ...
, given that city's prominence as Spain's capital. The Guadarramas' role as a natural barrier has been of importance in many of the armed conflicts that have afflicted Spain. For centuries, the range constituted a border between the
Christian A Christian () is a person who follows or adheres to Christianity, a Monotheism, monotheistic Abrahamic religion based on the life and teachings of Jesus in Christianity, Jesus Christ. Christians form the largest religious community in the wo ...
kingdoms to the north and
Muslims Muslims () are people who adhere to Islam, a Monotheism, monotheistic religion belonging to the Abrahamic religions, Abrahamic tradition. They consider the Quran, the foundational religious text of Islam, to be the verbatim word of the God ...
kingdoms to the south, during the times of Reconquest. The legacy of that epoch can be seen in the splendid
medieval In the history of Europe, the Middle Ages or medieval period lasted approximately from the 5th to the late 15th centuries, similarly to the post-classical period of World history (field), global history. It began with the fall of the West ...
walled cities occupying both sides of the mountains, such as
Buitrago del Lozoya Buitrago del Lozoya () is a Municipalities of Spain, municipality of the autonomous community of Community of Madrid, Madrid in central Spain. It belongs to the comarca of Sierra Norte. The town is one of the few in the community that have main ...
and Manzanares el Real in Madrid, and the Castillo de Pedraza in Segovia. In 1808, during the
Peninsular War The Peninsular War (1808–1814) was fought in the Iberian Peninsula by Kingdom of Portugal, Portugal, Spain and the United Kingdom of Great Britain and Ireland, United Kingdom against the invading and occupying forces of the First French ...
fought by Spain against invaders from France, the Battle of Somosierra took place at the range's Somosierra Pass, where the Spanish were defeated by
Napoleonic Napoleon Bonaparte (born Napoleone di Buonaparte; 15 August 1769 – 5 May 1821), later known by his regnal name Napoleon I, was a French general and statesman who rose to prominence during the French Revolution and led a series of mi ...
troops composed principally of Polish lancers. Likewise, in the
Battle of Guadarrama The Battle of Guadarrama (), also known as the Battle of Somosierra (''Batalla de Somosierra''), was a battle that occurred in the Sierra de Guadarrama during the Spanish Civil War from 22 July to 15 September 1936. The Nationalists sent by Em ...
during the
Spanish Civil War The Spanish Civil War () was a military conflict fought from 1936 to 1939 between the Republican faction (Spanish Civil War), Republicans and the Nationalist faction (Spanish Civil War), Nationalists. Republicans were loyal to the Left-wing p ...
(1936-1939) the range comprised an important front with skirmishes fought in the mountain passes between the
loyalist Loyalism, in the United Kingdom, its overseas territories and its former colonies, refers to the allegiance to the British crown or the United Kingdom. In North America, the most common usage of the term refers to loyalty to the British Cr ...
and the rebel faction. Today, trenches and gun emplacements still survive along the line of the mountains' summits. The Guadarramas, as a result of their proximity to high population centres of cultural and educational importance, was one of the first areas of Spain where
natural resources Natural resources are resources that are drawn from nature and used with few modifications. This includes the sources of valued characteristics such as commercial and industrial use, aesthetic value, scientific interest, and cultural value. ...
and the study of
nature Nature is an inherent character or constitution, particularly of the Ecosphere (planetary), ecosphere or the universe as a whole. In this general sense nature refers to the Scientific law, laws, elements and phenomenon, phenomena of the physic ...
came to be valued, both for economic and educational reasons. This culminated in the establishment of the ''
Institución Libre de Enseñanza The Institución Libre de Enseñanza (ILE, English: ''Free Teaching Institution'') was a pedagogical experience developed in Spain for more than half a century (1876–1939). It was inspired by the Krausism, Krausist philosophy introduced at the Co ...
'' (Free Institution of Education) in 1876, which advocated an assimilation into Madrid's cultural values of the nearby mountain range's natural beauty. By the 1920s, there was a call to declare the entire range a protected
national park A national park is a nature park designated for conservation (ethic), conservation purposes because of unparalleled national natural, historic, or cultural significance. It is an area of natural, semi-natural, or developed land that is protecte ...
; a notion that is still unrealized but has support today.


Monuments and structures of interest

The magnificent scenery, the balmy summer climate and, especially, the proximity to Madrid and Segovia have resulted in the erection of many striking buildings and monuments on the hillsides of the Sierra de Guadarrama. The Royal Monastery of San Lorenzo de El Escorial, is an immense palace built to commemorate the
Battle of St. Quentin (1557) The Battle of Saint-Quentin of 1557 was a decisive engagement of the Italian War of 1551–1559 between the Kingdom of France and the Spanish Empire, at Saint-Quentin in Picardy. A Habsburg Spanish force under Duke Emmanuel Philibert of Savoy ...
, El Escorial is also an Augustinian monastery, museum, and library complex. It is in the town of
San Lorenzo de El Escorial San Lorenzo de El Escorial, also known as El Escorial de Arriba, is a town and municipality in the Community of Madrid, Spain, located to the northwest of the region in the southeastern side of the Sierra de Guadarrama, at the foot of Moun ...
. Designed by the architects Juan Bautista de Toledo and Juan de Herrera in an austere
Herrerian The Herrerian style ( or ''arquitectura herreriana'') of architecture was developed in Spain during the last third of the 16th century under the reign of Philip II of Spain, Philip II (1556–1598), and continued in force in the 17th century ...
classical style, and built from 1563 to 1584, it is shaped as a grid in memory of the martyrdom of
Saint Lawrence Saint Lawrence or Laurence (; 31 December 225 – 10 August 258) was one of the seven deacons of the city of Rome under Pope Sixtus II who were martyred in the Persecution of Christians, persecution of the Christians that the Roman Empire, Rom ...
. The complex has an enormous store of art, including masterworks by
Titian Tiziano Vecellio (; 27 August 1576), Latinized as Titianus, hence known in English as Titian ( ), was an Italian Renaissance painter, the most important artist of Renaissance Venetian painting. He was born in Pieve di Cadore, near Belluno. Ti ...
,
Tintoretto Jacopo Robusti (late September or early October 1518Bernari and de Vecchi 1970, p. 83.31 May 1594), best known as Tintoretto ( ; , ), was an Italian Renaissance painter of the Venetian school. His contemporaries both admired and criticized th ...
,
El Greco Doménikos Theotokópoulos (, ; 1 October 1541 7 April 1614), most widely known as El Greco (; "The Greek"), was a Greek painter, sculptor and architect of the Spanish Renaissance, regarded as one of the greatest artists of all time. ...
, Velázquez,
Rogier van der Weyden Rogier van der Weyden (; 1399 or 140018 June 1464), initially known as Roger de le Pasture (), was an Early Netherlandish painting, early Netherlandish painter whose surviving works consist mainly of religious triptychs, altarpieces, and commis ...
,
Paolo Veronese Paolo Caliari (152819 April 1588), known as Paolo Veronese ( , ; ), was an Italian Renaissance painter based in Venice, known for extremely large history paintings of religion and mythology, such as ''The Wedding at Cana (Veronese), The Wedding ...
, Alonso Cano,
José de Ribera Jusepe de Ribera (; baptised 17 February 1591 – 3 November 1652) was a Spanish painter and printmaker. Ribera, Francisco de Zurbarán, Bartolomé Esteban Murillo, and the singular Diego Velázquez, are regarded as the major artists of Spani ...
, Claudio Coello and others; its library containing thousands of priceless ancient manuscripts; and the complex has been designated a
UNESCO World Heritage Site World Heritage Sites are landmarks and areas with legal protection under an treaty, international treaty administered by UNESCO for having cultural, historical, or scientific significance. The sites are judged to contain "cultural and natural ...
. In the north face of , surrounded by thick pine groves, is the Santa Cruz del Valle de los Caídos ("Holy Cross of the Valley of the Fallen"). Conceived by General
Francisco Franco Francisco Franco Bahamonde (born Francisco Paulino Hermenegildo Teódulo Franco Bahamonde; 4 December 1892 – 20 November 1975) was a Spanish general and dictator who led the Nationalist faction (Spanish Civil War), Nationalist forces i ...
to honour those killed during the
Spanish Civil War The Spanish Civil War () was a military conflict fought from 1936 to 1939 between the Republican faction (Spanish Civil War), Republicans and the Nationalist faction (Spanish Civil War), Nationalists. Republicans were loyal to the Left-wing p ...
, the monument contains beneath it the remains of 40,000 fallen soldiers, as well as a basilica in which Franco was interred. Above rises a massive granite cross — 150 m high — which is visible from as far away as 50 km. In , in the centre of the Lozoya valley, lies the ''Monasterio de Santa María de El Paular'' ("Monastery of Santa María of Paular"). Surrounded by scenic mountainscapes, the monastery features a large
cloister A cloister (from Latin , "enclosure") is a covered walk, open gallery, or open Arcade (architecture), arcade running along the walls of buildings and forming a quadrangle (architecture), quadrangle or garth. The attachment of a cloister to a cat ...
and dates to the late 14th century. It was constructed at the behest of king
Henry II of Castile Henry II (13 January 1334 – 29 May 1379), called Henry of Trastámara or the Fratricidal (''el Fratricida''), was the first List of Castilian monarchs, King of Castile and List of Leonese monarchs, León from the House of Trastámara. He became ...
and in 1876 was declared a Spanish National Monument. Manzanares Castle is a medieval fort in the municipality of Manzanares el Real, at the foot of La Pedriza. It is composed of several cylindrical towers and dates to the 15th century. In the town of Pedraza, is a namesake medieval castle, . The citadel rises on a hill protecting the town. It dates to the 14th century and an expansion during the 16th century. Although at one time in disrepair, the castle was restored in modern times and is in a good state of preservation. The structure is protected on all sides by its original, ancient walls, lending a medieval ambience to the surroundings. In the municipality of San Ildefonso in
Castile and León Castile and León is an Autonomous communities of Spain, autonomous community in northwestern Spain. Castile and León is the largest autonomous community in Spain by area, covering 94,222 km2. It is, however, sparsely populated, with a pop ...
lies the
Baroque The Baroque ( , , ) is a Western Style (visual arts), style of Baroque architecture, architecture, Baroque music, music, Baroque dance, dance, Baroque painting, painting, Baroque sculpture, sculpture, poetry, and other arts that flourished from ...
-style Palacio Real de la Granja de San Ildefonso, a royal residence actually used in summer by Spanish nobility. It was commissioned by
Philip V of Spain Philip V (; 19 December 1683 – 9 July 1746) was List of Spanish monarchs, King of Spain from 1 November 1700 to 14 January 1724 and again from 6 September 1724 to his death in 1746. His total reign (45 years and 16 days) is the longest in the ...
in 1724. The palace's extensive gardens feature numerous sculptures of mythological beings, which are highly prized for their artistic value. The gardens were based on those King Philip V had known during his childhood in the French royal court.


Protected zones

Guadarrama National Park For some years, a proposal to designate the range as a national park (''Parque Nacional de Guadarrama'') has been under discussion. The aim was to protect the range from degradation caused by the heavy human traffic as a result of its proximity to large cities such as Madrid. The law that regulates the approved national park was published on June 26, 2013. Formerly two high traffic areas of the Guadarrama mountains have achieved protected nature reserve status: * The '' Parque Regional de la Cuenca Alta del Manzanares'' ("High River Basin Regional Park of the Manzanares"), located in the
Community of Madrid The Community of Madrid (; ) is one of the seventeen autonomous communities and 50 provinces of Spain, provinces of Spain. It is located at the heart of the Iberian Peninsula and Meseta Central, Central Plateau (); its capital and largest munici ...
was the first Sierra de Guadarrama zone to receive protected status. When the designation was first granted it included only ''La Pedriza'' (an area including a number of peaks, valleys and rivers in the Guadarramas), but later it was extended to cover the ''Monte de El Pardo'' — a densely
forested A forest is an ecosystem characterized by a dense community of trees. Hundreds of definitions of forest are used throughout the world, incorporating factors such as tree density, tree height, land use, legal standing, and ecological functio ...
area to the north of Madrid, covering more than 470 square kilometres (181 mile²). * The '' Parque Natural de la Cumbre, Circo y Lagunas de Peñalara'' ("Peñalara's Summit, Cirques and Lakes Natural Park"). The natural park is much smaller and more recently designated than the preceding one, only covering the tallest part of the
massif A massif () is a principal mountain mass, such as a compact portion of a mountain range, containing one or more summits (e.g. France's Massif Central). In mountaineering literature, ''massif'' is frequently used to denote the main mass of an ...
of Peñalara (at 2,428 m the highest mountain in the Sierra de Guadarrama) and one of few glaciers formations of the whole Sistema Central, with three small cirques, two
moraine A moraine is any accumulation of unconsolidated debris (regolith and Rock (geology), rock), sometimes referred to as glacial till, that occurs in both currently and formerly glaciated regions, and that has been previously carried along by a gla ...
s, and almost twenty
glacial lakes A glacial lake is a body of water with origins from glacier activity. They are formed when a glacier erodes the land and then melts, filling the depression created by the glacier. Formation Near the end of the last glacial period, roughly 10,0 ...
.


Myths and legends

Over the centuries, several myths and legends about the region have developed: ; The Shepherd's Chasm: It is believed that in the mountains nearby
San Lorenzo de El Escorial San Lorenzo de El Escorial, also known as El Escorial de Arriba, is a town and municipality in the Community of Madrid, Spain, located to the northwest of the region in the southeastern side of the Sierra de Guadarrama, at the foot of Moun ...
, a secret treasure cache lies buried. Many have prospected in the region, searching for this illusive trove. :This legend holds that a certain Rafael Corraliza, who managed the rich financial affairs of the
El Escorial El Escorial, or the Royal Site of San Lorenzo de El Escorial (), or (), is a historical residence of the king of Spain located in the town of San Lorenzo de El Escorial, up the valley ( road distance) from the town of El Escorial, Madrid, El ...
monastery, was lured by greed to plunder the monastery's treasury of
doubloon The doubloon (from Spanish language, Spanish ''doblón'', or "double", i.e. ''double escudo'') was a two-''Spanish escudo, escudo'' gold coin worth approximately four Spanish dollars or 32 ''Spanish real, reales'', and weighing 6.766 grams (0.218 ...
s. Corraliza then absconded, heading for sanctuary in
Portugal Portugal, officially the Portuguese Republic, is a country on the Iberian Peninsula in Southwestern Europe. Featuring Cabo da Roca, the westernmost point in continental Europe, Portugal borders Spain to its north and east, with which it share ...
. He stole out at night, taking a mountain footpath that led to the nearest village, Robledondo. However, upon attempting to traverse the mountain area known as the Shepherd's Chasm, named for a deep mountain crevasse, he was caused by a saint watching over the monastery to fall into the chasm, which swallowed up both him and the stolen gold. In the course of time, the abyss was covered with branches and stones for fear that cattle or any person could suffer the same fate as Corraliza. ; The Boulder of the Dead: The name of this legend comes from a namesake peculiar rock formation in La Pedriza. The story is that a group of three brigands kidnap a young woman of a rich and powerful Madrid family. While the chief of the band is temporarily away, the two remaining bandits decide to rape the young woman. Upon the chief's unexpected return, he attempts to throw each of them over the cliff above the namesake boulder as quick justice. The first is done successfully, but the second grabs the leg of the ringleader as they struggle at the brink of the precipice, and they both plummet to their deaths on the rocks below. According to local people, for a time, the corpses of the three bandits could be seen in a crack of the rocks.


See also

*
Sistema Central The Central System, Spanish language, Spanish and , is one of the main systems of mountain ranges in the Iberian Peninsula. The 2,592 m high Pico Almanzor is its highest summit. The Central System is located just north of the 40th parallel north, ...
* Peñalara Nature Reserve * Guadarrama National Park * Guadarrama Pass * Valsain Mountains * Peñalara * La Pedriza * Imperial Route of the Community of Madrid * Puerto de Cotos * Bola del Mundo * Montón de Trigo


References


Bibliography

*Fidalgo García, Pablo & Martín Espinosa, Agustín (2005). ''Atlas Estadístico de la Comunidad de Madrid 2005''. Instituto de Estadística de la Comunidad de Madrid. *Pliego Vega, Domingo (2005). ''Guadarrama. 50 excursiones fáciles''. Ediciones Desnivel. *Rincón, Manuel (1987). ''Caminar por la Sierra de Guadarrama''. Editorial Barrabes. *Sánchez Martínez, Javier & Martínez de Pisón, Eduardo (2004). ''La Sierra de Guadarrama:La Imagen de una Montaña''. Ediciones La Librería. *Vías, Julio (2004). ''La Sierra de Guadarrama. Biografía de un paisaje''. Ediciones La Librería. *Zarzuela Aragón, Javier (2003). ''Excursiones para niños por la Sierra de Madrid''. Ediciones La Librería.


External links


Information


Official Website of Sierra de Guadarrama
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News in Sierra de Madrid


Routes and climbs

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* ttps://web.archive.org/web/20080416032757/http://www.madrid.org/comun/inforjoven/0,4652,195895601_226384386_195896294_,00.html Treks in the Guadarrama mountains


Miscellaneous

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The Guadarrama mountains in Google Maps
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Meteorological prediction to Guadarrama mountains
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Webcams in Valdesquí and Puerto de Cotos
{{DEFAULTSORT:Sierra De Guadarrama Guadarrama Mountain ranges of the Community of Madrid Geography of the Community of Madrid Geography of the Province of Ávila Geography of the Province of Segovia Forests of Spain