Snowden Mountain | |
---|---|
Highest point | |
Elevation | 6,420 ft (1,957 m) [1] [2] |
Prominence | 1,670 ft (509 m) [2] |
Parent peak | Peak 6450 [2] |
Isolation | 5.64 mi (9.08 km) [2] |
Coordinates | 67°47′51″N149°41′44″W / 67.7975679°N 149.6955763°W [3] |
Geography | |
Location | Yukon–Koyukuk Alaska, United States |
Parent range | Brooks Range Philip Smith Mountains |
Topo map | USGS Chandalar D-6 SE |
Geology | |
Rock age | Cambrian to Ordovician |
Rock type | schist, phyllite, marble [4] |
Snowden Mountain is a 6,420-foot-elevation (1,960-meter) mountain summit located in the Brooks Range, in the U.S. state of Alaska.
The mountain is situated 13 miles north of Sukakpak Mountain, 100 miles north of the Arctic Circle, and 200 miles north-northwest of Fairbanks. The peak lies along the east side of the Dietrich River valley, and can be seen from the Dalton Highway which traverses the valley. Topographic relief is significant as the summit rises 4,700 feet (1,400 meters) above the river in two miles.
The peak is set in the Snowden Mountain Area of Critical Environmental Concern, which is managed by the Bureau of Land Management. This ACEC is extremely rugged and was established to protect Dall sheep habitat on the southern slope of the Brooks Range.
The peak is named in association with Snowden Creek heading on its southeast slope, which in turn was named in 1939 by Robert Marshall for his Eskimo friend and hunting partner, Nutirwik, also known as Harry Snowden. [5] The name has been officially adopted by the U.S. Board on Geographic Names.
Based on the Köppen climate classification, Snowden Mountain is located in a subarctic climate zone with long, cold, winters, and short, cool summers. [6] Winter temperatures can drop below −30 °F with wind chill factors below −50 °F. Precipitation runoff from the mountain drains west into the Dietrich River. The months June through August offer the most favorable weather for viewing and climbing.
Mount Hayes is the highest mountain in the eastern Alaska Range, in the U.S. state of Alaska. Despite not being a fourteener, it is one of the largest peaks in the United States in terms of rise above local terrain. For example, the Northeast Face rises 8,000 feet (2,440 m) in approximately 2 miles (3.2 km). This large vertical relief contributes to Mount Hayes being the 51st most topographically prominent peak in the world.
Sharkstooth Peak is a 12,468-foot-elevation (3,800-meter) mountain summit in Montezuma County, Colorado.
Sukakpak Mountain is a prominent 4,459-foot mountain summit located in the Philip Smith Mountains of the Brooks Range, in the U.S. state of Alaska. The peak is situated 90 miles north of the Arctic Circle near milepost 203 on the Dalton Highway, and 200 mi (322 km) north-northwest of Fairbanks, where the Bettles and Dietrich Rivers merge to form Middle Fork Koyukuk River. The peak's Sukakpak name was reported in 1930 by the USGS as an Inupiat word, said to mean "marten deadfall." From the north, the mountain resembles a carefully balanced log used to trap marten. The name was officially adopted in 1932 by the U.S. Board on Geographic Names.
Dillon Mountain is a prominent 4,820-foot mountain summit located in the Philip Smith Mountains of the Brooks Range, in the U.S. state of Alaska. The peak is situated 93 miles north of the Arctic Circle near milepost 207 on the Dalton Highway, and 200 mi (322 km) north-northwest of Fairbanks, where the Bettles and Dietrich Rivers merge to form Middle Fork Koyukuk River. Sukakpak Mountain rises 3 mi (5 km) to the southwest, and Dietrich Camp of the Trans-Alaska Pipeline lies 3 mi (5 km) to the northwest. The peak was named after John Thomas Dillon (1947-1987), a geologist with the Alaska Division of Geological and Geophysical Surveys who mapped the geology of the southern Brooks Range mineral belt. He died tragically with his father, Stephen Patrick Dillon, in an airplane crash in the Brooks Range while returning home from field work in July 1987. The name was officially adopted in 1990 by the U.S. Board on Geographic Names. This landmark is notable for its massive west face composed of Skajit limestone rising nearly 3,400 feet above the surrounding valley.
Poss Mountain is a prominent 6,180-foot mountain summit located in the Philip Smith Mountains of the Brooks Range, in the U.S. state of Alaska. The peak is situated 80 miles north of the Arctic Circle, five miles east of Dalton Highway, 11.3 mi (18 km) south of Sukakpak Mountain, and 190 mi (306 km) north-northwest of Fairbanks. The peak was named about 1930 by wilderness activist Robert Marshall after "Poss" Postlethwaite, an early and old gold prospector in this area around Wiseman. Robert Marshall described the then 78-year-old Postlethwaite as "the oldest man in the Koyukuk," having spent 32 winters in the area. The name was officially adopted in 1932 by the U.S. Board on Geographic Names. The Poss Mountain Research Natural Area was designated in 1991 to protect natural mineral licks and lambing habitat for Dall sheep. Precipitation runoff from the mountain drains into tributaries of the Middle and South Forks of Koyukuk River.
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Snowdon Peak is a 13,077-foot-elevation (3,986-meter) mountain summit located in San Juan County, Colorado, United States. It is situated seven miles south of the community of Silverton, in the Weminuche Wilderness, on land managed by San Juan National Forest. It is part of the San Juan Mountains range which is a subset of the Rocky Mountains of North America, and is set nine miles west of the Continental Divide. Topographic relief is significant as the east aspect rises 4,300 feet above the Animas River in approximately 1.5 mile. Neighbors include Mount Garfield three miles to the east-southeast, and Twilight Peak, which is the nearest higher peak, 3.7 miles to the south-southwest. This mountain can be seen from U.S. Route 550. The mountain is named after Snowdon, the highest mountain in Wales.
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