Andrews Glacier

Last updated

Andrews Glacier
Andrews Glacier.jpg
Andrews Glacier viewed from the outlet of Andrews Tarn
USA Colorado relief location map.svg
Red pog.svg
Andrews Glacier
Location in Colorado
TypeMountain glacier
Location Larimer County, Colorado, U.S.
Coordinates 40°17′15″N105°41′02″W / 40.28750°N 105.68389°W / 40.28750; -105.68389 Coordinates: 40°17′15″N105°41′02″W / 40.28750°N 105.68389°W / 40.28750; -105.68389 [1]
TerminusTalus
StatusRetreating

Andrews Glacier is an alpine glacier in a cirque below Otis Peak (12,486 ft (3,806 m)) in Rocky Mountain National Park in the U.S. state of Colorado. [2] The glacier extends from Andrews Pass at nearly 12,000 to 11,700 feet (3,700 to 3,600 m) with some perennial snow extending to Andrews Tarn, a small proglacial lake. When images of the glacier taken in the early 1900s are compared with those of the early 2000s, Andrews Glacier is showing a negative glacier mass balance which indicates the glacier is retreating. [3]

See also

Related Research Articles

Rocky Mountains Major mountain range in western North America

The Rocky Mountains, also known as the Rockies, are a major mountain range in western North America. The Rocky Mountains stretch 3,000 mi (4,800 km) in straight-line distance from the northernmost part of British Columbia, in western Canada, to New Mexico in the Southwestern United States. The northern terminus is located in the Liard River area east of the Pacific Coast Ranges, while the southernmost point is near the Albuquerque area adjacent the Rio Grande Basin and north of the Sandia–Manzano Mountain Range. Located within the North American Cordillera, the Rockies are distinct from the Cascade Range and the Sierra Nevada, which all lie farther to the west.

Rocky Mountain National Park National park in Colorado, United States

Rocky Mountain National Park is an American national park located approximately 76 mi (122 km) northwest of Denver International Airport in north-central Colorado, within the Front Range of the Rocky Mountains. The park is situated between the towns of Estes Park to the east and Grand Lake to the west. The eastern and western slopes of the Continental Divide run directly through the center of the park with the headwaters of the Colorado River located in the park's northwestern region. The main features of the park include mountains, alpine lakes and a wide variety of wildlife within various climates and environments, from wooded forests to mountain tundra.

Wind River Range

The Wind River Range, is a mountain range of the Rocky Mountains in western Wyoming in the United States. The range runs roughly NW–SE for approximately 100 mi (160 km). The Continental Divide follows the crest of the range and includes Gannett Peak, which at 13,802 ft (4,207 m), is the highest peak in Wyoming; and also Fremont Peak at 13,750 ft (4,191 m), the third highest peak in Wyoming. There are more than 40 other named peaks in excess of 12,999 ft (3,962 m). With the exception of the Grand Teton in the Teton Range, the next 19 highest peaks in Wyoming after Gannett are also in the Winds.

Gannett Peak Mountain in Wyoming, United States

Gannett Peak is the highest mountain peak in the U.S. state of Wyoming at 13,810 feet (4,210 m). It lies in the Wind River Range within the Bridger Wilderness of the Bridger-Teton National Forest. Straddling the Continental Divide along the boundary between Fremont and Sublette counties, it has the second greatest topographic prominence in the state (7076') after Cloud Peak (7077'), and is the highest ground for 290.36 miles in any direction.

Sawtooth Range (Idaho)

The Sawtooth Range is a mountain range of the Rocky Mountains in central Idaho, United States, reaching a maximum elevation of 10,751 feet (3,277 m) at the summit of Thompson Peak. It encompasses an area of 678 square miles (1,756 km2) spanning parts of Custer, Boise, Blaine, and Elmore counties, and is bordered to the east by the Sawtooth Valley. Much of the mountain range is within the Sawtooth Wilderness, part of the Sawtooth National Recreation Area and Sawtooth National Forest.

Twins Glacier

Twins Glacier is west of the Continental Divide in the northern Wind River Range in the U.S. state of Wyoming. The glacier is located in the Bridger Wilderness of Bridger-Teton National Forest, and is among the largest grouping of glaciers in the American Rocky Mountains. The glacier is situated in a northeast facing cirque, below the summit of Winifred Peak.

Harrower Glacier

Harrower Glacier is located on the west side of the Continental Divide in the northern Wind River Range in the US state of Wyoming. The glacier is in the Bridger Wilderness of Bridger-Teton National Forest, and is among the largest grouping of glaciers in the American Rocky Mountains. Harrower Glacier flows to the north and is situated in a cirque, below the summit of Knife Point Mountain.

Tyndall Glacier (Colorado)

Tyndall Glacier is a small cirque glacier in Rocky Mountain National Park in the U.S. state of Colorado. Tyndall Glacier is on the east side of the Continental Divide and in a cirque to the north of Hallett Peak. Tyndall Glacier is both an ice and a rock glacier, with the lower portions of the glacier being composed primarily of rock debris and a small portion of ice.

Cameron Glaciers

The Cameron Glaciers are several ice bodies located on Mount Cameron in the Olympic Mountains in Olympic National Park. These glaciers are located in four north to northeast-facing cirques and range in elevation from about 6,700 feet (2,000 m) to just under 6,000 ft (1,800 m). The ice bodies in the easternmost, northeast-oriented cirque are the smallest, while the glacier just to the west is the largest. The westernmost two ice bodies are roughly equal in surface area. All bodies of ice located in these cirques are separated by arêtes. Meltwater from the glacier eventually enters Cameron Creek located to the north.

Hagues Peak

Hagues Peak is the highest summit of the Mummy Range in the Rocky Mountains of North America. The 13,573-foot (4,137 m) thirteener is in the Rocky Mountain National Park Wilderness, 9.9 miles (15.9 km) northwest of the Town of Estes Park, Colorado, United States. Hagues Peak is the highest point in Larimer County, Colorado.

Arapaho Glacier

Arapaho Glacier is an alpine glacier in a cirque immediately southeast of North Arapaho Peak, in Roosevelt National Forest in the U.S. state of Colorado. The glacier is just east of the Continental Divide. Arapaho Glacier is the largest glacier in the state of Colorado and helps provide water for the city of Boulder, Colorado. The glacier has a negative glacier mass balance and lost over 52% of its surface area during the 20th Century.

Mills Glacier

Mills Glacier is an alpine glacier near the base of the east mountain face of Longs Peak, in Rocky Mountain National Park in the U.S. state of Colorado.

Moomaw Glacier

Moomaw Glacier is an alpine glacier in Rocky Mountain National Park in the U.S. state of Colorado. Moomaw Glacier is almost 1 mi (1.6 km) northeast of Isolation Peak and the old terminal moraine of the glacier impounds Frigid Lake.

Rowe Glacier

Rowe Glacier is an alpine glacier in Rocky Mountain National Park in the U.S. state of Colorado. It is 300 yd (270 m) north of Hagues Peak and the source of the North Fork Big Thompson River. Rowe Glacier was the first glacier to be identified in Colorado.

Saint Vrain Glaciers

The Saint Vrain Glaciers are small alpine glaciers located in Roosevelt National Forest in the U.S. state of Colorado. The glaciers are just south of Rocky Mountain National Park and east of the Continental Divide in northeast facing cirques.

Sprague Glacier

Sprague Glacier is a small cirque glacier in Rocky Mountain National Park in the U.S. state of Colorado. Sprague Glacier is on the east side of the Continental Divide and .25 mi (0.40 km) southeast of Sprague Peak. Several small alpine lakes are near the foot of the glacier.

Taylor Glacier (Colorado)

Taylor Glacier is a small cirque glacier in Rocky Mountain National Park in the U.S. state of Colorado. Taylor Glacier is on the east side of the Continental Divide and adjacent to Taylor Peak. Taylor Glacier is both an ice and a rock glacier, with the lower portions of the glacier being composed primarily of rock debris and a small portion of ice.

The Dove (glacier)

The Dove is a small cirque glacier or perennial snowfield located in Rocky Mountain National Park in the U.S. state of Colorado. The Dove is on the north slope of Longs Peak and near The Keyhole, which is along a popular climbing route to the summit.

Taylor Peak (Grand County, Colorado)

Taylor Peak, elevation 13,158 ft (4,011 m), is a summit in the Front Range of north central Colorado. The peak is in Rocky Mountain National Park at the head of Loch Vale and just north of Taylor Glacier.

Anthracite Range

The Anthracite Range is a mountain range in the West Elk Mountains, a sub-range of the Rocky Mountains of North America. The range is located in Gunnison County of western Colorado and lies within the West Elk Wilderness of the Gunnison National Forest. The Anthracite Range is one of several prominent laccoliths found in the West Elk Mountains.

References

  1. "Andrews Glacier". Geographic Names Information System . United States Geological Survey . Retrieved August 18, 2012.CS1 maint: discouraged parameter (link)
  2. McHenrys Peak, CO (Map). TopoQwest (United States Geological Survey Maps). Retrieved August 18, 2012.
  3. Hoffman, Matthew; Andrew Fountain; Jonathan Achuff (2007). "20th-century variations in area of cirque glaciers and glacierets, Rocky Mountain National Park, Rocky Mountains, Colorado, USA" (PDF). Annals of Glaciology. 46: 349–354. doi: 10.3189/172756407782871233 . S2CID   28944236 . Retrieved August 18, 2012.