|
Condor Peak
Condor Peak is a 5,442-foot-elevation (1,659 meter) mountain summit located in the San Gabriel Mountains, in Los Angeles County, California, United States. Description Condor Peak is set within San Gabriel Mountains National Monument, approximately north of downtown Los Angeles. The May 2, 2024, expansion of the San Gabriel Mountains National Monument by President Biden brought Condor Peak within the boundary of the monument. Topographic relief is significant as the summit rises over above Ybarra Canyon in approximately one mile (1.6 km). Reaching the summit involves 14 miles of hiking with 4,260 feet of elevation gain.Jerry Schad, ''Afoot and Afield: Los Angeles County: A Comprehensive Hiking Guide'', Wilderness Press, 2010, , p. 209. The mountain is named for the California condor which was common here in the early 1900s. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
California Condor
The California condor (''Gymnogyps californianus'') is a New World vulture and the largest North American land bird. It became extinct in the wild in 1987 when all remaining wild individuals were captured, but has since been reintroduced to northern Arizona and southern Utah (including the Grand Canyon area and Zion National Park), the coastal mountains of California, and northern Baja California in Mexico. Although four other fossil members are known, it is the only surviving member of the genus ''Gymnogyps''. The species is listed by the International Union for the Conservation of Nature as Critically Endangered, and similarly considered ''Critically Imperiled'' by NatureServe. The plumage is black with patches of white on the underside of the wings; the head is largely bald, with skin color ranging from gray on young birds to yellow and bright orange on breeding adults. Its wingspan is the widest of any North American bird, and its weight of up to nearly equals that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Köppen Climate Classification
The Köppen climate classification is one of the most widely used climate classification systems. It was first published by German-Russian climatologist Wladimir Köppen (1846–1940) in 1884, with several later modifications by Köppen, notably in 1918 and 1936. Later, the climatologist Rudolf Geiger (1894–1981) introduced some changes to the classification system, which is thus sometimes called the Köppen–Geiger climate classification system. The Köppen climate classification divides climates into five main climate groups, with each group being divided based on seasonal precipitation and temperature patterns. The five main groups are ''A'' (tropical), ''B'' (arid), ''C'' (temperate), ''D'' (continental), and ''E'' (polar). Each group and subgroup is represented by a letter. All climates are assigned a main group (the first letter). All climates except for those in the ''E'' group are assigned a seasonal precipitation subgroup (the second letter). For example, ''Af'' i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Angeles National Forest
The Angeles National Forest (ANF) of the U.S. Forest Service is located in the San Gabriel Mountains and Sierra Pelona Mountains, primarily within Los Angeles County in southern California. The ANF manages a majority of the San Gabriel Mountains National Monument. The national forest was established in 1908, incorporating the first San Bernardino National Forest and parts of the former Santa Barbara and San Gabriel National Forests. Angeles National Forest headquarters are located in Arcadia, California. Geography The Angeles National Forest covers a total of , protecting large areas of the San Gabriel Mountains and Sierra Pelona Mountains. It is located just north of the densely inhabited metropolitan area of Greater Los Angeles. While primarily within Los Angeles County, a small part extends eastward into southwestern San Bernardino County, in the Mount San Antonio ("Mount Baldy") area, and a tiny section also extends westward into northeastern Ventura County, in the Lake P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North American 1000 M Summits
North is one of the four compass points or cardinal directions. It is the opposite of south and is perpendicular to east and west. ''North'' is a noun, adjective, or adverb indicating direction or geography. Etymology The word ''north'' is related to the Old High German ''nord'', both descending from the Proto-Indo-European unit *''ner-'', meaning "left; below" as north is to left when facing the rising sun. Similarly, the other cardinal directions are also related to the sun's position. The Latin word ''borealis'' comes from the Greek '' boreas'' "north wind, north", which, according to Ovid, was personified as the wind-god Boreas, the father of Calais and Zetes. ''Septentrionalis'' is from ''septentriones'', "the seven plow oxen", a name of ''Ursa Major''. The Greek ἀρκτικός (''arktikós'') is named for the same constellation, and is the source of the English word ''Arctic''. Other languages have other derivations. For example, in Lezgian, ''kefer'' can mean bo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mountains Of Los Angeles County, California
A mountain is an elevated portion of the Earth's crust, generally with steep sides that show significant exposed bedrock. Although definitions vary, a mountain may differ from a plateau in having a limited summit area, and is usually higher than a hill, typically rising at least 300 metres (1,000 feet) above the surrounding land. A few mountains are isolated summits, but most occur in mountain ranges. Mountains are formed through tectonic forces, erosion, or volcanism, which act on time scales of up to tens of millions of years. Once mountain building ceases, mountains are slowly leveled through the action of weathering, through slumping and other forms of mass wasting, as well as through erosion by rivers and glaciers. High elevations on mountains produce colder climates than at sea level at similar latitude. These colder climates strongly affect the ecosystems of mountains: different elevations have different plants and animals. Because of the less hospitable terrain and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Big Tujunga Dam
Big Tujunga Dam is a concrete arch dam in Los Angeles County, California, spanning Big Tujunga Canyon northeast of Sunland, in the foothills of the San Gabriel Mountains. Completed in 1931, it provides flood control and groundwater recharge for the San Fernando Valley. Its reservoir is called Big Tujunga Reservoir, and collects runoff from a watershed of . Although it is located inside the Angeles National Forest, public access to the lake is forbidden. The water is usually kept at a low level, in order to protect against winter floods. The name of the dam is derived from a Tongva village name. Description The dam is high from the riverbed, high from the foundations, and long. It has a width of at the base, tapering to at the crest. The storage capacity is at the spillway, with a minimum pool of to prevent sediment and debris from entering the dam's outlets. After the completion of Hansen Dam downstream, the importance of Big Tujunga Dam for flood control has decrease ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Big Tujunga Creek
Big Tujunga Creek is a major stream in Los Angeles County in the U.S. state of California. From its headwaters high in the San Gabriel Mountains, it flows generally southwest for ,U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map, accessed March 16, 2011 joining Little Tujunga Creek to form the Tujunga Wash near Pacoima. The stream is sometimes considered as one with the Tujunga Wash, which is the continuation of Big Tujunga to the Los Angeles River, bringing the total length to more than . The name of the stream is derived from a Tongva village name. Course The creek rises near the Angeles Crest Highway in Upper Big Tujunga Canyon, deep within the Angeles National Forest. Its upper course is steep and rocky, and sprinkled with rapids, riffles and small waterfalls. It flows west then northwest, receiving Alder Creek and Lynx Gulch from the right and Wildcat Gulch and Wickiup Creek from the left. As the stream cuts deeper into its gorg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orographic Lift
Orographic lift occurs when an air mass is forced from a low elevation to a higher elevation as it moves over rising terrain. As the air mass gains altitude it quickly cools down adiabatically, which can raise the relative humidity to 100% and create clouds and, under the right conditions, precipitation. Orographic lifting can have a number of effects, including precipitation, rain shadowing, leeward winds, and associated clouds. Precipitation Precipitation induced by orographic lift occurs in many places throughout the world. Examples include: * The Mogollon Rim in central Arizona * The western slope of the Sierra Nevada range in California * The mountains near Baja California North – specifically La Bocana to Laguna Hanson. * The windward slopes of Khasi and Jayantia Hills (see Mawsynram) in the state of Meghalaya in India. * The Western Highlands of Yemen, which receive by far the most rain in Arabia. * The Western Ghats that run along India's western coast. * The Gr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Continental Climate
Continental climates often have a significant annual variation in temperature (warm summers and cold winters). They tend to occur in the middle latitudes (40 to 55 north), within large landmasses where prevailing winds blow overland bringing some precipitation, and temperatures are not moderated by oceans. Continental climates occur mostly in the Northern Hemisphere due to the large landmasses found there. Most of northern and northeastern China, eastern and southeastern Europe, Western and north western Iran, central and southeastern Canada, and the central and northeastern United States have this type of climate. Continentality is a measure of the degree to which a region experiences this type of climate. In continental climates, precipitation tends to be moderate in amount, concentrated mostly in the warmer months. Only a few areas—in the mountains of the Pacific Northwest of North America and in Iran, northern Iraq, adjacent Turkey, Afghanistan, Pakistan, and Central Asia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Condor Peak Trail Views - Condor Peak
Condor is the common name for two species of New World vultures, each in a monotypic genus. The name derives from the Quechua ''kuntur''. They are the largest flying land birds in the Western Hemisphere. They are: * The Andean condor (''Vultur gryphus''), which inhabits the Andean mountains. * The California condor (''Gymnogyps californianus''), currently restricted to the western coastal mountains of the United States and Mexico and the northern desert mountains of Arizona in the United States. Taxonomy Condors are part of the family Cathartidae which contains the New World vultures, whereas the 15 species of Old World vultures are in the family Accipitridae, that also includes hawks, eagles, and kites. The New World and Old World vultures evolved from different ancestors. They both are carrion-eaters and the two groups are similar in appearance due to convergent evolution. Description Both condors are very large broad-winged soaring birds, the Andean condor being sh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hundred Peaks Section
The Hundred Peaks Section (HPS) is a mountaineering society within the Angeles Chapter of the Sierra Club that serves to provide mountaineering activities for Sierra Club members in the southern Sierra Nevada (U.S.), Sierra Nevada, the Transverse Ranges, and the Peninsular Ranges, and to honor mountaineers who have summited peaks in those mountain ranges. The section hosts summit hikes and scrambles in the Los Angeles and Inland Empire area 3 to 4 times per week. These hikes are open to the public. History The Hundred Peaks Section is the second-oldest of the Angeles Chapter mountaineer sections, and is its most active. It was started by outdoorsman Weldon Fairbanks Heald (1901-1967) in 1941, who wanted to summit 100 peaks in Southern California. Membership To become a member of the HPS, one must be a Sierra Club member and have climbed at least 25 peaks on the HPS List and subscribe to the section newsletter, ''The Lookout''. Especially accomplished members are awarded with ''emb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Topographic Relief
Terrain or relief (also topographical relief) involves the vertical and horizontal dimensions of land surface. The term bathymetry is used to describe underwater relief, while hypsometry studies terrain relative to sea level. The Latin word (the root of ''terrain'') means "earth." In physical geography, terrain is the lay of the land. This is usually expressed in terms of the elevation, slope, and orientation of terrain features. Terrain affects surface water flow and distribution. Over a large area, it can affect weather and climate patterns. Importance The understanding of terrain is critical for many reasons: * The terrain of a region largely determines its suitability for human settlement: flatter alluvial plains tend to have better farming soils than steeper, rockier uplands. * In terms of environmental quality, agriculture, hydrology and other interdisciplinary sciences; understanding the terrain of an area assists the understanding of watershed boundaries, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
