Capital Mountain | |
---|---|
Highest point | |
Elevation | 7,730 ft (2,356 m) [1] [2] |
Prominence | 1,801 ft (549 m) [3] |
Isolation | 7.63 mi (12.28 km) [3] |
Coordinates | 62°25′25″N144°06′51″W / 62.4234982°N 144.1140578°W [4] |
Geography | |
Country | United States |
State | Alaska |
Census Area | Copper River |
Protected area | Wrangell–St. Elias National Park and Preserve |
Parent range | Wrangell Mountains [5] |
Topo map | USGS Gulkana B-1 |
Geology | |
Age of rock | Pleistocene |
Mountain type | Eroded shield volcano |
Type of rock | Andesite [1] |
Volcanic arc/belt | Wrangell Volcanic Field |
Last eruption | 1 million years ago [1] |
Capital Mountain is an andesitic shield volcano located in Alaska. Its elevation is 7,730 ft (2356 m). [2]
Based on the Köppen climate classification, Capital Mountain is located in a subarctic climate zone, with long, cold, snowy winters, and cool summers. [6] Weather systems coming off the Gulf of Alaska are forced upwards by the Wrangell Mountains (orographic lift), causing heavy precipitation in the form of rainfall and snowfall. Winter temperatures can drop below -10 °F with wind chill factors below −20 °F.
Avalanche Spire is a mountain in the Alaska Range located 18.64 miles (30.00 km) south of Denali. It is very technical due to its steep slopes. The mountain's toponym was officially adopted in 1968 by the United States Board on Geographic Names.
Mount Thor (12,251 ft) is the second-highest peak of the Chugach Mountains in Alaska. It is named after Thor, Norse God of Thunder, because of the noise of avalanches on this mountain. The mountain's toponym was officially adopted in 1969 by the United States Board on Geographic Names.
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Double Peak is a prominent 6,818 foot mountain summit located in Lake Clark National Park and Preserve, in the Chigmit Mountains of the Aleutian Range, in the US state of Alaska. It is the highest non-volcanic peak in the Chigmit Mountains, and third-highest overall. The mountain is situated immediately north of Double Glacier, 100 mi (161 km) west-southwest of Anchorage, and 17.74 mi (29 km) north-northeast of Redoubt Volcano, which is the nearest higher peak. Although modest in elevation, relief is significant since the mountain rises up from tidewater at Cook Inlet in about 20 miles, and it ranks 71st in prominence for all peaks in Alaska. Double Peak was considered to be a volcano by the International Association of Volcanology and Chemistry of the Earth's Interior in 1973, but subsequent reconnaissance mapping indicates the peak is likely made of plutonic rocks of Jurassic age.
Pyramid Peak is an 8,875-foot (2,705-meter) mountain summit located at the western edge of the Saint Elias Mountains, in the U.S. state of Alaska. The peak is situated in Wrangell-St. Elias National Park and Preserve, 22 mi (35 km) southeast of McCarthy, 7 mi (11 km) southeast of Williams Peak, and 6 mi (10 km) south-southeast of Joshua Green Peak. The peak's descriptive local name was reported in 1908 by the United States Geological Survey. Precipitation runoff from the mountain drains into tributaries of the Nizina River, which in turn is part of the Copper River drainage basin.
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