A mountain is a large landform that rises above the surrounding land in a limited area in the form of a peak. A mountain is steeper than a hill. Mountains are formed through tectonic forces or volcanism; these forces can locally raise the surface of the earth. Mountains erode through the action of rivers, weather conditions, glaciers. A few mountains are isolated summits. High elevations on mountains produce colder climates than at sea level; these colder climates affect the ecosystems of mountains: different elevations have different plants and animals. Because of the less hospitable terrain and climate, mountains tend to be used less for agriculture and more for resource extraction and recreation, such as mountain climbing; the highest mountain on Earth is Mount Everest in the Himalayas of Asia, whose summit is 8,850 m above mean sea level. The highest known mountain on any planet in the Solar System is Olympus Mons on Mars at 21,171 m. There is no universally accepted definition of a mountain.
Elevation, relief, steepness and continuity have been used as criteria for defining a mountain. In the Oxford English Dictionary a mountain is defined as "a natural elevation of the earth surface rising more or less abruptly from the surrounding level and attaining an altitude which to the adjacent elevation, is impressive or notable."Whether a landform is called a mountain may depend on local usage. Mount Scott outside Lawton, Oklahoma, USA, is only 251 m from its base to its highest point. Whittow's Dictionary of Physical Geography states "Some authorities regard eminences above 600 metres as mountains, those below being referred to as hills." In the United Kingdom and the Republic of Ireland, a mountain is defined as any summit at least 2,000 feet high, whilst the official UK government's definition of a mountain, for the purposes of access, is a summit of 600 metres or higher. In addition, some definitions include a topographical prominence requirement 100 or 500 feet. At one time the U.
S. Board on Geographic Names defined a mountain as being 1,000 feet or taller, but has abandoned the definition since the 1970s. Any similar landform lower. However, the United States Geological Survey concludes that these terms do not have technical definitions in the US; the UN Environmental Programme's definition of "mountainous environment" includes any of the following: Elevation of at least 2,500 m. Using these definitions, mountains cover 33% of Eurasia, 19% of South America, 24% of North America, 14% of Africa; as a whole, 24% of the Earth's land mass is mountainous. There are three main types of mountains: volcanic and block. All three types are formed from plate tectonics: when portions of the Earth's crust move and dive. Compressional forces, isostatic uplift and intrusion of igneous matter forces surface rock upward, creating a landform higher than the surrounding features; the height of the feature makes it either a hill or, if steeper, a mountain. Major mountains tend to occur in long linear arcs, indicating tectonic plate boundaries and activity.
Volcanoes are formed when a plate is pushed at a mid-ocean ridge or hotspot. At a depth of around 100 km, melting occurs in rock above the slab, forms magma that reaches the surface; when the magma reaches the surface, it builds a volcanic mountain, such as a shield volcano or a stratovolcano. Examples of volcanoes include Mount Pinatubo in the Philippines; the magma does not have to reach the surface in order to create a mountain: magma that solidifies below ground can still form dome mountains, such as Navajo Mountain in the US. Fold mountains occur when two plates collide: shortening occurs along thrust faults and the crust is overthickened. Since the less dense continental crust "floats" on the denser mantle rocks beneath, the weight of any crustal material forced upward to form hills, plateaus or mountains must be balanced by the buoyancy force of a much greater volume forced downward into the mantle, thus the continental crust is much thicker under mountains, compared to lower lying areas.
Rock can fold either asymmetrically. The upfolds are anticlines and the downfolds are synclines: in asymmetric folding there may be recumbent and overturned folds; the Balkan Mountains and the Jura Mountains are examples of fold mountains. Block mountains are caused by faults in the crust: a plane; when rocks on one side of a fault rise relative to the other, it can form a mountain. The uplifted blocks are block horsts; the intervening dropped blocks are termed graben: these can be small or form extensive rift valley systems. This form of landscape can be seen in East Africa, the Vosges, the Basin and Range Province of Western North America and the Rhine valley; these areas occur when the regional stress is extensional and the crust is thinned. During and following uplift, mountains are subjected to the agents of erosion which wear the uplifted area down. Erosion causes the surface of mountains to be younger than the rocks that form the mountains themselves. Glacial processes produce characteristic landforms, such as pyramidal peaks, knife-edge arêtes, bowl-shaped cirques that can contai
In mountaineering in the United States, a thirteener is a mountain that exceeds 13,000 feet above mean sea level, similar to the more familiar "fourteeners," which exceed 14,000 feet. In most instances, "thirteeners" refers only to those peaks between 13,000 and 13,999 feet in elevation; the importance of thirteeners is greatest in Colorado, which has the majority of such peaks in North America with over 600 of them. Despite the large number of peaks, over 20 peak baggers have reported climbing all of Colorado's thirteeners. Thirteeners are significant in states whose highpoints fall between 13,000 and 13,999 feet. Regarding whether or not peaks in excess of 13,999 feet should be considered as "thirteeners", this article will count them as such for statistical purposes, but concentrate its focus on those peaks less than 14,000 feet since the higher peaks are covered in the fourteeners list. Not all summits over 13,000 feet qualify as thirteeners, but only those summits that mountaineers consider to be independent.
Objective standards for independence include a combination. However thirteener lists do not always use such objective rules. A rule used by mountaineers in the contiguous United States is that a peak must have at least 300 feet of prominence to qualify. According to the Mountaineering Club of Alaska, it is standard in Alaska to use a 500 ft prominence rule rather than a 300-foot rule; these are the standards applied for the lists below. Thirteeners are found in nine U. S. states. This table summarizes their numbers based on each state's prominence criteria: By the most detailed count, Colorado has 637 peaks that exceed 13,000 feet and meet the prominence criteria, of which 53 are fourteeners; the highest of them less than 14,000 feet are as follows: Grizzly Peak is not only the name of Colorado's highest thirteener, but the state has four other Grizzly Peaks plus one Grizzly Mountain on the list: Other notable Colorado thirteeners include: California has the second greatest number of thirteeners with 149 of them, of which 12 are fourteeners.
The highest under 14,000 feet are as follows: Other notable California thirteeners include: Alaska has at least 41 thirteeners that meet its more stringent prominence criteria of 500 ft, of which 20 are fourteeners. Different sources list varying numbers of 13,000+ ft peaks in the state because many of the peaks are unnamed and have no spot elevations given on the USGS topographical maps. Using a 300' interpolated prominence criterion, there are 61 13,000+ ft peaks in Alaska; the following list may miss a few peaks that should be included: Wyoming has 34 thirteeners with at least 300 ft of prominence, but no fourteeners. 30 of the 34 are located in the rugged and remote Wind River Range. The highest of them are: Other notable Wyoming thirteeners include: Utah has 17 thirteeners with at least 300 ft of prominence, but no fourteeners. All of them are located in the remote Uinta Mountains near the Wyoming border; the highest of the thirteeners are: New Mexico has 3 thirteeners, all located within about 40 miles of each other in the Sangre de Cristo Mountains.
Hawaii has two thirteeners, the great shield volcanoes which comprise the bulk of the Big Island of Hawaii. Nevada has only a single thirteener that meets the threshold for inclusion, Wheeler Peak in Great Basin National Park with an impressive 7,568 feet of prominence. However, the highest point in the state is Boundary Peak, a sub-peak of California's Montgomery Peak with only 240 feet of prominence. Mount Rainier is the only mountain in Washington state that exceeds 13,000 feet, it has two summits that meet the prominence criteria, both of which are included on the list of fourteeners. Outline of the United States Index of United States-related articles Fourteener Mountain peaks of Alaska Mountain peaks of California Mountain peaks of Colorado Mountain peaks of the Rocky Mountains Mountain peaks of the United States Peak Lists by Gerry Roach 13ers.com - Home of Colorado's Thirteeners Climb13ers.com - Peakbagging Info for Colorado 13ers listsofjohn.com
Chair Mountain is a prominent mountain summit in the Elk Mountains range of the Rocky Mountains of North America. The 12,727-foot peak is located in the Raggeds Wilderness of Gunnison National Forest, 5.0 miles west by south of the Town of Marble in Gunnison County, United States. List of Colorado mountain ranges List of Colorado mountain summits List of Colorado fourteeners List of Colorado 4000 meter prominent summits List of the most prominent summits of Colorado List of Colorado county high points
The Elkhead Mountains are a mountain range in Colorado. The mountain range is considered to be low altitude within Colorado as the mountains are under 11,000 feet. Located within Routt and Moffat counties, the mountain range is far from metropolitan areas and has few lakes and streams, so it attracts few visitors; the mountain range is a volcanic range and all of the peaks were formed by volcanic action. The mountain range extends 16 miles east to west and 10 miles north to south, its center is located at 40.77404°N 107.32132°W / 40.77404. All of the peaks within the Elkhead Mountains are a part of Routt National Forest. Significant peaks are: Bears Ears, Sugar Loaf, Saddle Mountain, Black Mountain, Pilot Knob, Meaden Peak. Park Range Mountain ranges of Colorado
Capitol Peak (Colorado)
Capitol Peak is a high and prominent mountain summit in the Elk Mountains range of the Rocky Mountains of North America. The 14,137-foot fourteener is located in the Maroon Bells-Snowmass Wilderness of White River National Forest, 8.7 miles east by south of the community of Redstone in Pitkin County, United States. Capitol Peak lies on the long ridge connecting the heart of the Elk Mountains with Mount Sopris to the northwest. Capitol Peak is notable for its impressive vertical relief, rising nearly 9,000 feet above the Roaring Fork Valley. Capitol Peak is one of the most difficult of Colorado's fourteeners to climb; the only non-technical route, the Northeast Ridge, requires crossing the famously exposed "Knife Edge," the northeast ridge of Capitol. Fatalities have occurred on this route. Other routes require technical rock climbing, for the Northwest Buttress Route; these routes have significant rockfall danger due to a great deal of loose rock. Capital Peak Capitol Peak - by Hayden Survey who thought it looked similar to the U.
S. Capitol building List of mountain peaks of North America List of mountain peaks of the United States List of mountain peaks of Colorado List of Colorado fourteeners Borneman, Walter R.. A Climbing Guide to Colorado's Fourteeners. Pruett Publishing Company. ISBN 0-87108-751-0. Photo Journal of a trip up Snowmass Mountain and Capitol Peak "Capitol Peak". Colorado Fourteeners Initiative. Archived from the original on 2008-05-09. Retrieved 2008-11-30. "Northeast Ridge from Capitol Lake". Capitol Peak. 14ers.co. Retrieved 2008-11-30
The Rocky Mountains known as the Rockies, are a major mountain range in western North America. The Rocky Mountains stretch more than 4,800 kilometers from the northernmost part of British Columbia, in western Canada, to New Mexico in the Southwestern United States. Located within the North American Cordillera, the Rockies are somewhat distinct from the Pacific Coast Ranges, Cascade Range, the Sierra Nevada, which all lie farther to the west; the Rocky Mountains formed 80 million to 55 million years ago during the Laramide orogeny, in which a number of plates began sliding underneath the North American plate. The angle of subduction was shallow, resulting in a broad belt of mountains running down western North America. Since further tectonic activity and erosion by glaciers have sculpted the Rockies into dramatic peaks and valleys. At the end of the last ice age, humans began inhabiting the mountain range. After Europeans, such as Sir Alexander Mackenzie, Americans, such as the Lewis and Clark expedition, began exploring the range and furs drove the initial economic exploitation of the mountains, although the range itself never experienced dense population.
Public parks and forest lands protect much of the mountain range, they are popular tourist destinations for hiking, mountaineering, hunting, mountain biking and snowboarding. The name of the mountains is a translation of an Amerindian name, related to Algonquian; the first mention of their present name by a European was in the journal of Jacques Legardeur de Saint-Pierre in 1752, where they were called "Montagnes de Roche". The Rocky Mountains are defined as stretching from the Liard River in British Columbia south to the Rio Grande in New Mexico; the Rockies vary in width from 110 to 480 kilometres. The Rocky Mountains are notable for containing the highest peaks in central North America; the range's highest peak is Mount Elbert located in Colorado at 4,401 metres above sea level. Mount Robson in British Columbia, at 3,954 metres, is the highest peak in the Canadian Rockies; the eastern edge of the Rockies rises above the Interior Plains of central North America, including the Sangre de Cristo Mountains of New Mexico and Colorado, the Front Range of Colorado, the Wind River Range and Big Horn Mountains of Wyoming, the Absaroka-Beartooth ranges and Rocky Mountain Front of Montana and the Clark Range of Alberta.
The western edge of the Rockies includes ranges such as the Wasatch near Salt Lake City and the Bitterroots along the Idaho-Montana border. The Great Basin and Columbia River Plateau separate these subranges from distinct ranges further to the west. In Canada, the western edge of the Rockies is formed by the huge Rocky Mountain Trench, which runs the length of British Columbia from its beginnings in the middle Flathead River valley in western Montana to the south bank of the Liard River. Geographers define three main groups of the Canadian Rockies: the Continental Ranges, Hart Ranges, Muskwa Ranges; the Rockies do not extend into central British Columbia. Other mountain ranges continue beyond the Liard River, including the Selwyn Mountains in Yukon, the Brooks Range in Alaska, but those are not part of the Rockies, though they are part of the American Cordillera; the Continental Divide of the Americas is located in the Rocky Mountains and designates the line at which waters flow either to the Atlantic or Pacific Oceans.
Triple Divide Peak in Glacier National Park is so named because water falling on the mountain reaches not only the Atlantic and Pacific but Hudson Bay as well. Farther north in Alberta, the Athabasca and other rivers feed the basin of the Mackenzie River, which has its outlet on the Beaufort Sea of the Arctic Ocean. Human population is not dense in the Rocky Mountains, with an average of four people per square kilometer and few cities with over 50,000 people. However, the human population grew in the Rocky Mountain states between 1950 and 1990; the forty-year statewide increases in population range from 35% in Montana to about 150% in Utah and Colorado. The populations of several mountain towns and communities have doubled in the last forty years. Jackson, increased 260%, from 1,244 to 4,472 residents, in forty years; the rocks in the Rocky Mountains were formed. The oldest rock is Precambrian metamorphic rock. There is Precambrian sedimentary argillite, dating back to 1.7 billion years ago. During the Paleozoic, western North America lay underneath a shallow sea, which deposited many kilometers of limestone and dolomite.
In the southern Rocky Mountains, near present-day Colorado, these ancestral rocks were disturbed by mountain building 300 Ma, during the Pennsylvanian. This mountain-building produced the Ancestral Rocky Mountains, they consisted of Precambrian metamorphic rock forced upward through layers of the limestone laid down in the shallow sea. The mountains eroded throughout the late Paleozoic and early Mesozoic, leaving extensive deposits of sedimentary rock. Terranes began colliding with the western edge of North America in the Mississippian, causing the Antler orogeny. For 270 million years, the focus of the effects of plate collisions were near the edge of the North American plate boundary, far to the west of the Rocky Mountain region, it was. The current Rocky Mountains arose in the Laramide orogeny from between 55 Ma. For the Canadi
Gunnison County, Colorado
Gunnison County is the fifth-most extensive of the 64 counties in the U. S. state of Colorado. As of the 2010 census, the population was 15,324; the county seat is Gunnison. The county was named for John W. Gunnison, a United States Army officer and captain in the Army Topographical Engineers, who surveyed for the transcontinental railroad in 1853. Archeological studies have dated the Ute people's appearance in the Uncompahgre region of Colorado as early as 1150 A. D. Possibilities exist that they are descendants of an earlier people living in the area as far back as 1500 B. C, they were a nomadic race of dark skin moving about the Western Slope of Colorado in the various parts of the year. In the early to mid-1600s the Spaniards of New Mexico introduced the horse which changed their patterns of hunting taking them across the divide to the eastern slopes and into conflict with the Plains Indians which soon became their bitter enemies; the first recorded expedition of Western Colorado wilderness was led by Don Juan Rivera in 1765.
In 1776, two Spanish priests, Fathers Escalante and Dominguez, led a party into the area around Montrose and Paonia. The 1830s brought the mountainmen into the area to trap beaver. An old cabin located on Cochetopa Creek discovered by Sidney Jocknick was most built between 1830 and 1840 and a rude fort was discovered on a tributary of Tomichi Creek bore signs of a conflict. In 1853, Capt. John W. Gunnison surveyed the area for the transcontinental railroad route. In 1858 gold was discovered near Denver bringing the white man across the divide into the western slope in search of the precious metal. In 1859 a party settled on Texas Gulch in Union Park. Placer gold was found at Washington Gulch in 1861 as part of the Colorado Gold Rush. In 1861 the Territory of Colorado was organized; the territorial governor was made ex officio Superintentant of Indian Affairs. A conference on October 1, 1863 established a boundary line for a reservation; this treaty averted a possible dangerous situation by giving the Utes some cattle and sheep, a blacksmith and 20,000 dollars a year in goods and provisions.
The government failed to fulfill any these obligations straining the relations further. The treaty of 1868 recognized Chief Ouray as the sole spokesman for seven tribes of the Ute People, he held this power over his people through understanding. The Los Pinos Agency was developed through the Treaties of 1868 and 1873; the first agent was 2nd Lieutenant Calvin T. Speer. In 1871 a cow camp was started near the present site of Gunnison with James P. Kelley in charge. In this year, Jabez Nelson Trask, a Harvard grad, relieved Speer as agent upon orders from Governor Edward M. McCook. In 1872 Trask was replaced by Charles Adams. In 1875 orders from Washington to move the agency to the Uncomphgre Valley were completed in November. In 1876 Colorado entered the Gunnison County was formed. 1879 was a year of expansion due to the miners and adventurers seeking wealth. The cattle industry was established by 1880; the short growing season was not conducive to farming and the ranchers had to level fields and construct irrigation ditches to water the fields for hay.
According to the U. S. Census Bureau, the county has a total area of 3,260 square miles, of which 3,239 square miles is land and 21 square miles is water, it is the fifth-largest county by area in Colorado. The county seat is Gunnison, Colorado, located in a wide valley at the confluence of Tomichi Creek and Gunnison River; the county rests in the Gunnison Basin formed by the Continental Divide to the east, Collegiate Peaks Wilderness rises in the northeast, Maroon Bells-Snowmass Wilderness and the White River National Forest to the north, the West Elk Wilderness rises in the west of the county with Delta and Montrose Counties on its western slopes. The Uncompahgre Wilderness rises in the southwest of the county and the Powderhorn Wilderness east of there and Saquache County being south of Gunnison county eastward over to Marshall Pass southeast of the county. Taylor Park Reservoir is a man-made lake created by the Taylor Dam constructed in 1934 with appropriations of 2,725,000 dollars; as of the census of 2000, there were 13,956 people, 5,649 households, 2,965 families residing in the county.
The population density was 4 people per square mile. There were 9,135 housing units at an average density of 3 per square mile; the racial makeup of the county was 95.08% White, 0.49% Black or African American, 0.70% Native American, 0.54% Asian, 0.04% Pacific Islander, 1.44% from other races, 1.72% from two or more races. 5.02% of the population were Hispanic or Latino of any race. There were 5,649 households out of which 24.10% had children under the age of 18 living with them, 44.20% were married couples living together, 5.40% had a female householder with no husband present, 47.50% were non-families. 27.20% of all households were made up of individuals and 4.60% had someone living alone, 65 years of age or older. The average household size was 2.30 and the average family size was 2.84. In the county, the population was spread out with 17.90% under the age of 18, 21.10% from 18 to 24, 32.90% from 25 to 44, 21.20% from 45 to 64, 6.90% who were 65 years of age or older. The median age was 30 years.
For every 100 females there were 118.30 males. For every 100 females age 18 and over, there were 120.90 males. The median income for a household in the county was $36,916, the median income for a family was $51,950. Males had a median income of $30,885 versus $25,000 for females; the per capita income for the county was $21,407. About 6.00% of families and 15.00% of the population were below the poverty line, including 9.40% of those under age 18 and 7.20% of those age 65 or over. Total population for Gunnison Count