The Holyoke Range or Mount Holyoke Range is a
traprock mountain range located in the
Connecticut River Valley of
Massachusetts
Massachusetts ( ; ), officially the Commonwealth of Massachusetts, is a U.S. state, state in the New England region of the Northeastern United States. It borders the Atlantic Ocean and the Gulf of Maine to its east, Connecticut and Rhode ...
. It is a subrange of the narrow, linear
Metacomet Ridge
The Metacomet Ridge, Metacomet Ridge Mountains, or Metacomet Range of southern New England is a narrow and steep fault-block mountain ridge known for its extensive cliff faces, scenic vistas, microclimate ecosystems, and rare or endangered plants ...
that extends from
Long Island Sound
Long Island Sound is a sound (geography), marine sound and tidal estuary of the Atlantic Ocean. It lies predominantly between the U.S. state of Connecticut to the north and Long Island in New York (state), New York to the south. From west to east, ...
near
New Haven, Connecticut
New Haven is a city of the U.S. state of Connecticut. It is located on New Haven Harbor on the northern shore of Long Island Sound. With a population of 135,081 as determined by the 2020 United States census, 2020 U.S. census, New Haven is List ...
, north through the
Connecticut River Valley of
Massachusetts
Massachusetts ( ; ), officially the Commonwealth of Massachusetts, is a U.S. state, state in the New England region of the Northeastern United States. It borders the Atlantic Ocean and the Gulf of Maine to its east, Connecticut and Rhode ...
to the
Vermont
Vermont () is a U.S. state, state in the New England region of the Northeastern United States. It borders Massachusetts to the south, New Hampshire to the east, New York (state), New York to the west, and the Provinces and territories of Ca ...
border. It is also a
subrange of the
Appalachian Mountains
The Appalachian Mountains, often called the Appalachians, are a mountain range in eastern to northeastern North America. The term "Appalachian" refers to several different regions associated with the mountain range, and its surrounding terrain ...
. A popular
hiking
A hike is a long, vigorous walk, usually on trails or footpaths in the countryside. Walking for pleasure developed in Europe during the eighteenth century. Long hikes as part of a religious pilgrimage have existed for a much longer time.
"Hi ...
destination, the range is known for its anomalous east–west orientation, high ledges and its scenic character. It is also notable for its unique
microclimate
A microclimate (or micro-climate) is a local set of atmosphere of Earth, atmospheric conditions that differ from those in the surrounding areas, often slightly but sometimes substantially. The term may refer to areas as small as a few square m ...
ecosystems and rare plant communities, as well as significant historic sites, such as the Mount Holyoke Summit House and the
Horse Caves.
[Farnsworth, Elizabeth J]
"Metacomet-Mattabesett Trail Natural Resource Assessment."
(2004). PDF file. Retrieved November 20, 2007.
Retrieved December 10, 2007
Holyoke Range vs. Mount Holyoke Range
Both names for the range are frequently cited by reputable published sources. For instance, both the Massachusetts Department of Conservation and Recreation and the non-profit Friends of the Mount Holyoke Range use Mount Holyoke Range,
while the other form, Holyoke Range, is used in several different map and guide sources (the
USGS
The United States Geological Survey (USGS), founded as the Geological Survey, is an government agency, agency of the United States Department of the Interior, U.S. Department of the Interior whose work spans the disciplines of biology, geograp ...
1990 Belchertown 1:25000 scale topographic map,
[USGS map. Belchertown 1:25000 1990.] two longstanding popular retail hiking maps published by Newall Printing,
[Ryan, Christopher J. "Holyoke Range State Park: Western Section." 4th ed. Map. Hamilton I. Newell Printing, Amherst 1994.] the 1999 version of the
Appalachian Mountain Club
Appalachian Mountain Club (AMC) is the oldest outdoor group in the United States. Created in 1876 to explore and preserve the White Mountains (New Hampshire), White Mountains in New Hampshire, it has expanded throughout the northeastern U.S., wit ...
(AMC)'s ''Metacomet-Monadnock Trail Guide'',
[''The Metacomet-Monadnock Trail Guide''. 9th edition. The Appalachian Mountain Club. Amherst, Massachusetts, 1999] and the 1989 version of the AMC's ''Massachusetts and Rhode Island Trail Guide'').
[''Massachusetts and Rhode Island Trail Guide.'' Appalachian Mountain Club. Boston, 1989.] However, the AMC's 2004 ''Massachusetts Trail Guide'' uses "Mt. Holyoke Range" and the
United States Board on Geographic Names
The United States Board on Geographic Names (BGN) is a Federal government of the United States, federal body operating under the United States Secretary of the Interior. The purpose of the board is to establish and maintain uniform usage of geogr ...
now uses "Mount Holyoke Range".) Both names as well as the abbreviated ''Mt. Holyoke Range'' are used locally.
Geography

The Holyoke Range, located within the towns of
South Hadley,
Hadley,
Granby,
Amherst, and
Belchertown, rises steeply between and above the Connecticut River Valley below; it has an east–west orientation and is roughly long by wide at its widest point, although the steepness of the terrain makes the actual square mileage much larger. The high point of range is the summit of
Mount Norwottuck, above sea level.
Notable peaks include (from west to east)
Mount Holyoke
Mount Holyoke, a traprock mountain, elevation , is the westernmost peak of the Holyoke Range and part of the 100-mile (160 km) Metacomet Ridge. The mountain is located in the Connecticut River Valley of western Massachusetts, and is the n ...
at ; the
Seven Sisters, a series of ridgeline knobs with a high point of ;
Mount Hitchcock at ;
Bare Mountain at ;
Mount Norwottuck at ; Rattlesnake Knob at ;
Long Mountain at ; and Harris Hill at .
Round Mountain between Bare and Norwottuck has been removed by quarrying. A series of smaller, unnamed traprock hills continues from Long Mountain to the eastern end of the range. Another series of hills descends north from the range into the towns of Hadley and Amherst. Some of these have names: Tinker Hill at and Little Tinker Hill at are located at the base of Mount Hitchcock in Hadley; Mount Pollux at and Mount Castor at are between Mount Norwottuck and the center of Amherst.
[''DeLorme Topo 6.0''. Mapping software. Delorme, Yarmouth, Maine.] The Metacomet Ridge, of which the Holyoke Range is a part, continues west and south across the
Connecticut River
The Connecticut River is the longest river in the New England region of the United States, flowing roughly southward for through four states. It rises 300 yards (270 m) south of the U.S. border with Quebec, Canada, and discharges into Long Isl ...
as the
Mount Tom Range. The Metacomet Ridge is broken to the north; the Holyoke Range is separated from the
Pocumtuck Ridge, away by a relatively low-lying area punctuated with occasional rises.
The north side of the Holyoke Range drains into the Fort River, thence to the Connecticut River and Long Island Sound; the south side drains into Bachelor Brook, then into the Connecticut River.
History
Mount Holyoke
Mount Holyoke, a traprock mountain, elevation , is the westernmost peak of the Holyoke Range and part of the 100-mile (160 km) Metacomet Ridge. The mountain is located in the Connecticut River Valley of western Massachusetts, and is the n ...
, at the western edge of the range, received its name from
Elizur Holyoke, a 17th-century colonial settler of the
Springfield, Massachusetts
Springfield is the most populous city in Hampden County, Massachusetts, United States, and its county seat. Springfield sits on the eastern bank of the Connecticut River near its confluence with three rivers: the western Westfield River, the ea ...
, region. Folklore suggests that Holyoke named the mountain after himself. The City of
Holyoke
Holyoke is a city in Hampden County, Massachusetts, United States, that lies between the western bank of the Connecticut River and the Mount Tom Range. As of the 2020 United States census, 2020 census, the city had a population of 38,247. Loca ...
,
Mount Holyoke College
Mount Holyoke College is a Private college, private Women's colleges in the United States, women's Liberal arts colleges in the United States, liberal arts college in South Hadley, Massachusetts, United States. It is the oldest member of the h ...
, and the Holyoke Range were in turn named after the mountain.
Before 1821, very little history had been recorded about the Holyoke Range that distinguished it from the surrounding landscape.
Native Americans inhabited the area around the Holyoke Range for at least 10,000 years; they grew
maize
Maize (; ''Zea mays''), also known as corn in North American English, is a tall stout grass that produces cereal grain. It was domesticated by indigenous peoples in southern Mexico about 9,000 years ago from wild teosinte. Native American ...
,
tobacco
Tobacco is the common name of several plants in the genus '' Nicotiana'' of the family Solanaceae, and the general term for any product prepared from the cured leaves of these plants. More than 70 species of tobacco are known, but the ...
,
beans
A bean is the seed of some plants in the legume family (Fabaceae) used as a vegetable for human consumption or animal feed. The seeds are often preserved through drying (a ''pulse''), but fresh beans are also sold. Dried beans are tradition ...
,
squash, and other crops in the
Connecticut River
The Connecticut River is the longest river in the New England region of the United States, flowing roughly southward for through four states. It rises 300 yards (270 m) south of the U.S. border with Quebec, Canada, and discharges into Long Isl ...
floodplain, clearing small sections of forest by burning to make room for their crops.
[Cronin, William. Changes in the Land: Indians, Colonists, and the Ecology of New England. 2003, Hill and Wang, New York.] They hunted and fished in the area, and made tools and arrowheads from the basalt rock of the Metacomet Ridge.
Tensions between the
Pocumtuc tribe and colonial settlers, who began arriving in the region in the mid 17th century, reached a head in 1675 with the outbreak of
King Philip's War
King Philip's War (sometimes called the First Indian War, Metacom's War, Metacomet's War, Pometacomet's Rebellion, or Metacom's Rebellion) was an armed conflict in 1675–1678 between a group of indigenous peoples of the Northeastern Woodland ...
, a conflict involving colonists and a confederacy of Native American tribes across southern New England under the leadership of the
sachem
Sachems and sagamores are paramount chiefs among the Algonquians or other Native American tribes of northeastern North America, including the Iroquois. The two words are anglicizations of cognate terms (c. 1622) from different Eastern Alg ...
Metacomet
Metacomet (c. 1638 in Massachusetts – August 12, 1676), also known as Pometacom, Metacom, and by his adopted English name King Philip,[tobacco
Tobacco is the common name of several plants in the genus '' Nicotiana'' of the family Solanaceae, and the general term for any product prepared from the cured leaves of these plants. More than 70 species of tobacco are known, but the ...](_blank)
can be grown with commercial success. Rugged highlands, such as the Holyoke Range and Mount Tom Range, although unsuitable for farming, were often harvested of timber to produce
charcoal
Charcoal is a lightweight black carbon residue produced by strongly heating wood (or other animal and plant materials) in minimal oxygen to remove all water and volatile constituents. In the traditional version of this pyrolysis process, ca ...
, a primary source of fuel for the
steel
Steel is an alloy of iron and carbon that demonstrates improved mechanical properties compared to the pure form of iron. Due to steel's high Young's modulus, elastic modulus, Yield (engineering), yield strength, Fracture, fracture strength a ...
industry prior to the extraction of
coal
Coal is a combustible black or brownish-black sedimentary rock, formed as rock strata called coal seams. Coal is mostly carbon with variable amounts of other Chemical element, elements, chiefly hydrogen, sulfur, oxygen, and nitrogen.
Coal i ...
in the
mid-Appalachians.
Highland areas were also burned of timber when lowland fires, set to clear land for farms, raged out of control. However, by the early 20th century, after agricultural interests shifted west and charcoaling became unprofitable, rural New England became largely forested again. A 2004 ecological resource study conducted for the National Park Service suggests that the Metacomet Ridge may have remained more-or-less forested (cleared only intermittently) throughout New England's agricultural period, thereby allowing the area to retain its biologic diversity through the 20th century.
Increasing urbanization and industrialization in 19th-century New England resulted in an opposing aesthetic
transcendentalist movement characterized by the paintings of the
Hudson River School
The Hudson River School was a mid-19th-century American art movement embodied by a group of landscape painters whose aesthetic vision was influenced by Romanticism. Early on, the paintings typically depicted the Hudson River Valley and the sur ...
of American landscape painters such as
Frederic Edwin Church
Frederic Edwin Church (May 4, 1826 – April 7, 1900) was an American landscape painting, landscape painter born in Hartford, Connecticut. He was a central figure in the Hudson River School of American landscape painters, best known for paintin ...
and
Thomas Cole
Thomas Cole (February 1, 1801 – February 11, 1848) was an English-born American artist and the founder of the Hudson River School art movement. Cole is widely regarded as the first significant American landscape painter. He was known for hi ...
(who, in 1836, famously painted the Connecticut River from sketches he made from the summit of Mount Holyoke), the work of landscape architects such as
Frederick Law Olmsted
Frederick Law Olmsted (April 26, 1822 – August 28, 1903) was an American landscape architect, journalist, Social criticism, social critic, and public administrator. He is considered to be the father of landscape architecture in the U ...
, and the writings of philosophers like
Henry David Thoreau
Henry David Thoreau (born David Henry Thoreau; July 12, 1817May 6, 1862) was an American naturalist, essayist, poet, and philosopher. A leading Transcendentalism, transcendentalist, he is best known for his book ''Walden'', a reflection upon sim ...
and
Ralph Waldo Emerson
Ralph Waldo Emerson (May 25, 1803April 27, 1882), who went by his middle name Waldo, was an American essayist, lecturer, philosopher, minister, abolitionism, abolitionist, and poet who led the Transcendentalism, Transcendentalist movement of th ...
. This philosophical, artistic, and environmental movement transformed many areas of the Metacomet Ridge (as well as other places in New England) from a commercial resource to a recreational and aesthetic resource.
Hotels, parks, and summer estates were built on the mountains from the mid-1880s to the early 20th century.
[''Mt. Holyoke Range Historical Timeline'']
Cited November 20, 2007. Route 47 borders its west end. Down its middle is cut
Route 116 from South Hadley to Amherst. Formerly, along the east edge of this highway ran the Holyoke-to-Amherst trolley tracks. The bed is still visible along most of its mountain route.
The Mount Holyoke Summit House
In 1821, an guest cabin was built on Mount Holyoke by a local committee—one of the first New England summit houses. The property changed hands several times between 1821 and 1851, when it was bought and rebuilt as a two-story, eight-room hotel. Local entrepreneurs John and Frances French were the primary owners; between 1851 and 1900, the hotel and property were subject to a number of upgrades and related construction projects including a covered tramway to the summit of the mountain (first drawn by horse, then mechanized), a railroad from the base of the mountain to a steamboat dock on the Connecticut River, and the construction of a number of outbuildings and trails. With passenger steamship to the connecting summit railway established, the Mount Holyoke "Prospect House" became a popular tourist destination. Competing establishments were built on Mount Tom and
Mount Nonotuck across the Connecticut River, and on
Sugarloaf Mountain
Sugarloaf Mountain (, ) is a peak situated in Rio de Janeiro, Brazil, on a peninsula at the mouth of Guanabara Bay. Rising above the harbor, the peak is named for its resemblance to the traditional shape of concentrated refined loaf suga ...
and
Mount Toby to the north. The property passed hands again in the early 20th century, to chain
hotel
A hotel is an establishment that provides paid lodging on a short-term basis. Facilities provided inside a hotel room may range from a modest-quality mattress in a small room to large suites with bigger, higher-quality beds, a dresser, a re ...
ier
Joseph Allen Skinner, who eventually donated the hotel and property to the Commonwealth of Massachusetts for a state park in 1939 on the condition that the park be named after him (now the
J.A. Skinner State Park). The summit house suffered from storm damage and lack of maintenance until the mid-1980s, when it was renovated as a museum through local volunteer efforts supported by the Commonwealth of Massachusetts.
Other historic events
*The
Horse Caves, a series of
sedimentary
Sedimentary rocks are types of rock formed by the cementation of sediments—i.e. particles made of minerals (geological detritus) or organic matter (biological detritus)—that have been accumulated or deposited at Earth's surface. Sedime ...
rock overhangs located many hundreds of feet beneath the summit of Mount Norwottuck, are believed to have been used as a bivouac by rebels during
Shays's Rebellion of 1786.
* Edward Hitchcock, a former professor of geology at
Amherst College
Amherst College ( ) is a Private college, private Liberal arts colleges in the United States, liberal arts college in Amherst, Massachusetts, United States. Founded in 1821 as an attempt to relocate Williams College by its then-president Zepha ...
with a colorful history, coined the term "Scenographical Geology" in 1841 to describe the dramatic geologic landscape of the Holyoke Range. Hitchcock renamed several of the natural features of the range, including
Mount Norwottuck (originally called Hilliard Knob) and ''Titan's Piazza'', a
columnar basalt
Basalt (; ) is an aphanitic (fine-grained) extrusive igneous rock formed from the rapid cooling of low-viscosity lava rich in magnesium and iron (mafic lava) exposed at or very near the surface of a rocky planet or moon. More than 90% of a ...
outlook on Mount Holyoke. Hitchcock is also famous for suggesting that local
dinosaur
Dinosaurs are a diverse group of reptiles of the clade Dinosauria. They first appeared during the Triassic Geological period, period, between 243 and 233.23 million years ago (mya), although the exact origin and timing of the #Evolutio ...
tracks discovered in the
Triassic
The Triassic ( ; sometimes symbolized 🝈) is a geologic period and system which spans 50.5 million years from the end of the Permian Period 251.902 million years ago ( Mya), to the beginning of the Jurassic Period 201.4 Mya. The Triassic is t ...
sediments near the range had been produced by an ancient species of bird (the relationship between modern
bird
Birds are a group of warm-blooded vertebrates constituting the class (biology), class Aves (), characterised by feathers, toothless beaked jaws, the Oviparity, laying of Eggshell, hard-shelled eggs, a high Metabolism, metabolic rate, a fou ...
s and prehistoric dinosaurs would not be established by scientists until the latter half of the 20th century). A summit of the Holyoke Range is named after Hitchcock.
* Every year in October since 1838, students from nearby
Mount Holyoke College
Mount Holyoke College is a Private college, private Women's colleges in the United States, women's Liberal arts colleges in the United States, liberal arts college in South Hadley, Massachusetts, United States. It is the oldest member of the h ...
participate in ''Mountain Day.'' On that day, at the sound of ringing bells from Abbey Chapel on a random Autumn morning, all classes are cancelled and students hike to the summit of Mount Holyoke.
* On May 27, 1944, a
B-24
The Consolidated B-24 Liberator is an American heavy bomber, designed by Consolidated Aircraft of San Diego, California. It was known within the company as the Model 32, and some initial production aircraft were laid down as export models desi ...
, flying a night training mission out of
Westover Army Air Field in
Chicopee, Massachusetts
Chicopee ( ) is a city located on the Connecticut River in Hampden County, Massachusetts, United States. At the 2020 United States census, 2020 census, the city had a population of 55,560, making it the second-largest city in western Massachuset ...
, crashed into the south flank of the range, killing all ten crewmen. A memorial plaque was placed onto the summit of Mount Holyoke to eulogize the disaster. The plaque is about east of the house, but the actual crash site is down the southern flanks in the woods.
* The
Five Colleges Library Depository is located on the north side of Bare Mountain in the Holyoke Range, within
a subterranean bunker formerly occupied by the
United States Air Force Strategic Air Command (SAC). The bunker was created to provide commanders of SAC at the Westover Air Force Base in
Chicopee, Massachusetts
Chicopee ( ) is a city located on the Connecticut River in Hampden County, Massachusetts, United States. At the 2020 United States census, 2020 census, the city had a population of 55,560, making it the second-largest city in western Massachuset ...
, shelter in the event of a
Cold-War-era
nuclear
Nuclear may refer to:
Physics
Relating to the nucleus of the atom:
*Nuclear engineering
*Nuclear physics
*Nuclear power
*Nuclear reactor
*Nuclear weapon
*Nuclear medicine
*Radiation therapy
*Nuclear warfare
Mathematics
* Nuclear space
*Nuclear ...
attack. The three-story bunker features walls, a steel blast door, and is located underground.
* Both the Holyoke Range and the Mount Tom Range were part of a 1966 proposal by the
National Park Service
The National Park Service (NPS) is an List of federal agencies in the United States, agency of the Federal government of the United States, United States federal government, within the US Department of the Interior. The service manages all List ...
for a "Connecticut River National Recreation Area." Although the project was never realized, it has been followed through in spirit by a number of similar local and national conservation efforts, including an increased effort to acquire land on both ranges for state park expansion
and the creation by the Commonwealth of Massachusetts of the
Connecticut River Greenway State Park. On March 30, 2009, as part of U.S. Public Law 111-11 (Section 5202), the range's Metacomet-Monadnock Trail section was incorporated in the new
National Scenic Trail
The National Trails System is a series of trails in the United States designated "to promote the preservation of, public access to, travel within, and enjoyment and appreciation of the open-air, outdoor areas and historic resources of the Nati ...
called the New England Trail.
[New England Trail, National Scenic Trail](_blank)
Cited October 8, 2012. See also the original National Park Service proposal and study.
[Monadnock, Metacomet, Mattabesett National Scenic Trail Study.](_blank)
Cited Nov. 4, 2007.
The Tofu Curtain
The Holyoke Range has been nicknamed the Tofu Curtain as a divider between Hampshire and Hampden Counties.
The nickname refers to a
socioeconomic
Economics () is a behavioral science that studies the Production (economics), production, distribution (economics), distribution, and Consumption (economics), consumption of goods and services.
Economics focuses on the behaviour and interac ...
, cultural, and sometimes political divide between the wealthier
Hampshire County and its affluent
Five College Consortium
The Five College Consortium (often referred to as simply the Five Colleges) comprises four Liberal arts colleges in the United States, liberal arts colleges and one university in the Connecticut River Pioneer Valley of Western Massachusetts: Am ...
to the north
and the
working-class
The working class is a subset of employees who are compensated with wage or salary-based contracts, whose exact membership varies from definition to definition. Members of the working class rely primarily upon earnings from wage labour. Most c ...
Hampden County to the south, which comprises the cities of
Holyoke
Holyoke is a city in Hampden County, Massachusetts, United States, that lies between the western bank of the Connecticut River and the Mount Tom Range. As of the 2020 United States census, 2020 census, the city had a population of 38,247. Loca ...
and
Springfield, as well as their surrounding towns and cities.
While this southern part of the Massachusetts' Pioneer Valley is the second-largest metropolitan region in the state, areas of it are economically depressed with Holyoke's average 2017 annual household income ranked at $14,000.
Meanwhile, the towns of
Northampton
Northampton ( ) is a town and civil parish in Northamptonshire, England. It is the county town of Northamptonshire and the administrative centre of the Unitary authorities of England, unitary authority of West Northamptonshire. The town is sit ...
and
Amherst to the north are home to many
worker cooperatives
A worker cooperative is a cooperative owned and self-managed by its workers. This control may mean a firm where every worker-owner participates in decision-making in a democratic fashion, or it may refer to one in which management is elected by ...
and small businesses that often manufacture or sell natural products (such as
tofu
or bean curd is a food prepared by Coagulation (milk), coagulating soy milk and then pressing the resulting curds into solid white blocks of varying softness: ''silken'', ''soft'', ''firm'', and ''extra (or super) firm''. It originated in Chin ...
) to a more affluent population.
Geology and environment
The ridge of the Holyoke Range was formed 200 million years ago during the late
Triassic
The Triassic ( ; sometimes symbolized 🝈) is a geologic period and system which spans 50.5 million years from the end of the Permian Period 251.902 million years ago ( Mya), to the beginning of the Jurassic Period 201.4 Mya. The Triassic is t ...
and early
Jurassic
The Jurassic ( ) is a Geological period, geologic period and System (stratigraphy), stratigraphic system that spanned from the end of the Triassic Period million years ago (Mya) to the beginning of the Cretaceous Period, approximately 143.1 Mya. ...
periods and is composed of traprock, also known as
basalt
Basalt (; ) is an aphanite, aphanitic (fine-grained) extrusive igneous rock formed from the rapid cooling of low-viscosity lava rich in magnesium and iron (mafic lava) exposed at or very near the planetary surface, surface of a terrestrial ...
, an
extrusive
Extrusive rock refers to the mode of igneous volcanic rock formation in which hot magma from inside the Earth flows out (extrudes) onto the surface as lava or explodes violently into the atmosphere to fall back as pyroclastics or tuff. In contr ...
volcanic
A volcano is commonly defined as a vent or fissure in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface.
On Earth, volcanoes are most often fo ...
rock. Basalt is a dark-colored rock, but the iron within it weathers to a rusty brown when exposed to the air, lending the ledges a distinct reddish appearance. Basalt frequently breaks into octagonal and pentagonal columns, creating a unique "postpile" appearance. Huge slopes made of fractured basalt
talus are visible beneath many of the ledges; they are particularly visible along the Metacomet-Monadnock Trail on
Bare Mountain. The basalt ridges are the product of several massive
lava
Lava is molten or partially molten rock (magma) that has been expelled from the interior of a terrestrial planet (such as Earth) or a Natural satellite, moon onto its surface. Lava may be erupted at a volcano or through a Fissure vent, fractu ...
flows hundreds of feet deep that welled up in faults created by the
rifting
In geology, a rift is a linear zone where the lithosphere is being pulled apart and is an example of extensional tectonics. Typical rift features are a central linear Fault (geology), downfaulted depression, called a graben, or more commonly ...
apart of
North America
North America is a continent in the Northern Hemisphere, Northern and Western Hemisphere, Western hemispheres. North America is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South Ameri ...
from
Eurasia
Eurasia ( , ) is a continental area on Earth, comprising all of Europe and Asia. According to some geographers, Physical geography, physiographically, Eurasia is a single supercontinent. The concept of Europe and Asia as distinct continents d ...
and
Africa
Africa is the world's second-largest and second-most populous continent after Asia. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 20% of Earth's land area and 6% of its total surfac ...
. These basalt floods of lava happened over a period of 20 million years.
Erosion occurring between the eruptions deposited deep layers of sediment between the lava flows, which eventually
lithified
Lithification (from the Ancient Greek word ''lithos'' meaning 'rock' and the Latin-derived suffix ''-ific'') is the process in which sediments compact under pressure, expel connate fluids, and gradually become solid rock. Essentially, lithificati ...
into
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 ...
. The resulting "layer cake" of basalt and sedimentary sheets eventually
faulted and tilted upward. Subsequent
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 ...
wore away the weaker sedimentary layers a faster rate than the basalt layers, leaving the abruptly tilted edges of the basalt sheets exposed, creating the distinct linear ridge and dramatic cliff faces visible today. One way to imagine this is to picture a layer cake tilted slightly up with some of the frosting (the sedimentary layer) removed in between. One of the best places to view this layer-cake structure in the Holyoke Range is on Mount Norwottuck. The summit of Norwottuck is made of basalt; directly beneath the summit are the Horse Caves, a deep overhang where the weaker sedimentary layer has worn away at a more rapid rate than the basalt layer above it.
The Holyoke Range hosts a combination of
microclimate
A microclimate (or micro-climate) is a local set of atmosphere of Earth, atmospheric conditions that differ from those in the surrounding areas, often slightly but sometimes substantially. The term may refer to areas as small as a few square m ...
s unusual in
New England
New England is a region consisting of six states in the Northeastern United States: Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont. It is bordered by the state of New York (state), New York to the west and by the ...
. Dry, hot upper ridges support
oak savanna
An oak savanna is a type of savanna (or lightly forested grassland), where oaks (''Quercus ''spp.) are the dominant trees. It is also generally characterized by an understory that is lush with grass and herb-related plants. The terms "oakery" or ...
s, often dominated by
chestnut oak and a variety of understory grasses and ferns.
Eastern red cedar
''Juniperus virginiana'', also known as eastern redcedar, red cedar, Virginian juniper, eastern juniper, red juniper, and other local names, is a species of juniper native to eastern North America from southeastern Canada to the Gulf of Mexico an ...
, a dry-loving species, clings to the barren edges of cliffs. Backslope plant communities tend to be more similar to the adjacent
Berkshire
Berkshire ( ; abbreviated ), officially the Royal County of Berkshire, is a Ceremonial counties of England, ceremonial county in South East England. It is bordered by Oxfordshire to the north, Buckinghamshire to the north-east, Greater London ...
plateau containing species common to the
northern hardwood and
oak-hickory forest types.
Eastern hemlock
''Tsuga canadensis'', also known as eastern hemlock, eastern hemlock-spruce, or Canadian hemlock, and in the French-speaking regions of Canada as ''pruche du Canada'', is a coniferous tree native to eastern North America. It is the state tree of ...
crowds narrow ravines, blocking sunlight and creating damp, cooler growing conditions with associated cooler-climate plant species. Talus slopes are especially rich in nutrients and support a number of calcium-loving plants uncommon in Massachusetts. Because the traprock ridges generate such varied terrain, they are the home of several plant and animal species that are state-listed or globally rare,
such as the
timber rattlesnake
The timber rattlesnake (''Crotalus horridus''), also known Common name, commonly as the canebrake rattlesnake and the banded rattlesnake,Albert Hazen WWright AH, species:Anna Allen WWright AA (1957). ''Handbook of Snakes of the United States a ...
.
The Holyoke Range is also an important seasonal
raptor migration path.
Recreation

A seasonal auto road climbs to the summit of
Mount Holyoke
Mount Holyoke, a traprock mountain, elevation , is the westernmost peak of the Holyoke Range and part of the 100-mile (160 km) Metacomet Ridge. The mountain is located in the Connecticut River Valley of western Massachusetts, and is the n ...
and many miles of trails criss-cross the range, including the
Metacomet-Monadnock Trail and the
Robert Frost Trail. The range is used for
picnicking,
hiking
A hike is a long, vigorous walk, usually on trails or footpaths in the countryside. Walking for pleasure developed in Europe during the eighteenth century. Long hikes as part of a religious pilgrimage have existed for a much longer time.
"Hi ...
,
backcountry skiing
Backcountry skiing ( US), also called off-piste (Europe), alpine touring, freeriding or out-of-area, is skiing in the backcountry on unmarked or unpatrolled areas either inside or outside a ski resort's boundaries. This contrasts with alpine s ...
,
cross-country skiing
Cross-country skiing is a form of skiing whereby skiers traverse snow-covered terrain without use of ski lifts or other assistance. Cross-country skiing is widely practiced as a sport and recreational activity; however, some still use it as a m ...
,
mountain biking
Mountain biking (MTB) is a sport of riding bicycles off-road, often over rough terrain, usually using specially designed mountain bikes. Mountain bikes share similarities with other bikes but incorporate features designed to enhance durability ...
,
horseback riding
Equestrianism (from Latin , , , 'horseman', 'horse'), commonly known as horse riding (Commonwealth English) or horseback riding (American English), includes the disciplines of riding, driving, and vaulting. This broad description includes the u ...
,
bird watching,
hunting
Hunting is the Human activity, human practice of seeking, pursuing, capturing, and killing wildlife or feral animals. The most common reasons for humans to hunt are to obtain the animal's body for meat and useful animal products (fur/hide (sk ...
(in season), and
snowshoeing
Snowshoes are specialized outdoor gear for walking over snow. Their large footprint spreads the user's weight out and allows them to travel largely on top of rather than through snow. Adjustable bindings attach them to appropriate winter footw ...
. An
interpretive center is located in "The Notch" on
Route 116 on the tri-border of Granby, Amherst, and South Hadley.
Conservation
Much of the Holyoke Range has been conserved as part of Massachusetts's
J.A. Skinner State Park and
Mount Holyoke Range State Park. Other parcels are managed by non-profit organizations and town conservation commissions, or are private property. In 2000, the Holyoke Range was included in a study by the
National Park Service
The National Park Service (NPS) is an List of federal agencies in the United States, agency of the Federal government of the United States, United States federal government, within the US Department of the Interior. The service manages all List ...
for the designation of a new
National Scenic Trail
The National Trails System is a series of trails in the United States designated "to promote the preservation of, public access to, travel within, and enjoyment and appreciation of the open-air, outdoor areas and historic resources of the Nati ...
which was designated on March 30, 2009, as the
New England National Scenic Trail, which includes most of the
Metacomet-Monadnock Trail in Massachusetts and the
Mattabesett Trail and
Metacomet Trail trails in Connecticut.
Quarrying
A quarry is a type of open-pit mine in which dimension stone, rock, construction aggregate, riprap, sand, gravel, or slate is excavated from the ground. The operation of quarries is regulated in some jurisdictions to manage their s ...
on the range has resulted in the loss of a prominent peak,
Round Mountain, once located between Bare Mountain and Mount Norwottuck.
In response to a proposed
suburban
A suburb (more broadly suburban area) is an area within a metropolitan area. They are oftentimes where most of a metropolitan areas jobs are located with some being predominantly residential. They can either be denser or less densely populated ...
development on the
Seven Sisters part of the range in the late 1990s, several non-profit groups and local governments worked together to block construction and acquire the ridgeline for the Skinner State Park. Non-profit conservation organizations invested in the protection of the Holyoke Range and its
viewshed include the Kestrel Trust, The Valley Land Fund, the Berkshire Chapter of the Appalachian Mountain Club, and the Friends of the Mount Holyoke Range.
Friends of the Mount Holyoke Range
/ref>
See also
*List of subranges of the Appalachian Mountains
The following is a list of subranges within the Appalachian Mountains, a mountain range stretching ~2,050 miles from Newfoundland and Labrador, Canada to Alabama, US. The Appalachians, at their initial formation, were a part of the larger Centra ...
*Metacomet Ridge
The Metacomet Ridge, Metacomet Ridge Mountains, or Metacomet Range of southern New England is a narrow and steep fault-block mountain ridge known for its extensive cliff faces, scenic vistas, microclimate ecosystems, and rare or endangered plants ...
* Robert Frost Trail (Massachusetts)
* Metacomet-Monadnock Trail
* Nearby summits:
References
External links
Massachusetts DCR Mount Holyoke Range State Park
J.A. Skinner State Park Map
*
The Kestrel Trust
The Valley Land Fund
Friends of the Mount Holyoke Range
U.S. Congress ''New England National Scenic Trail Designation Act.''
NPS brochure for National Scenic Trail proposal.
Natural resource assessment of the Metacomet Ridge
Guide to the Robert Frost Trail
(PDF)
{{Authority control
Landforms of Hampshire County, Massachusetts
Mountain ranges of Massachusetts