Vigesimal Peak | |
---|---|
Highest point | |
Elevation | 6,550 ft (1,996 m) [1] |
Prominence | 2,021 ft (616 m) [2] |
Isolation | 4.38 mi (7.05 km) [3] |
Coordinates | 60°58′42″N148°38′34″W / 60.978445°N 148.642694°W [3] |
Naming | |
Etymology | Vigesimal |
Geography | |
Location | Municipality of Anchorage |
Country | United States |
State | Alaska |
Protected area | Chugach National Forest [3] |
Parent range | Chugach Mountains |
Topo map | USGS Seward D-5 |
Climbing | |
First ascent | 1995 Tim Kelley [4] |
Vigesimal Peak is a 6,550-foot-elevation (1,996-meter) mountain summit in Alaska, United States.
Vigesimal Peak is located 45 miles (72 km) east-southeast of Anchorage and 15 miles (24 km) north of Whittier in the Chugach Mountains, on land managed by Chugach National Forest. [3] Precipitation runoff from the mountain drains south to Turnagain Arm via Glacier River and north to Knik Arm via Knik River. Topographic relief is significant as the summit rises over 2,000 feet (550 m) above the head of Lake George Glacier in 0.57 miles (0.92 km). The peak's toponym has not been officially adopted by the U.S. Board on Geographic Names.
Based on the Köppen climate classification, Vigesimal Peak is located in a subarctic climate zone with long, cold, snowy winters, and cool summers. [5] Weather systems coming off the Gulf of Alaska are forced upwards by the Chugach 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. This climate supports the Lake George Glacier to the north, Surprise Glacier to the northeast, the Twentymile Glacier to the south, and an unnamed glacier on the west slope.
Pioneer Peak is a 6,398-foot (1,950 m) mountain in the Chugach Mountains in the U.S. state of Alaska. Located beside the Knik River just nine miles (14.5 km) south of Palmer and about six miles outside the Municipality of Anchorage limits, it is a prominent landmark in the Matanuska-Susitna Valley, as well as a popular hiking destination. Its Ahtna name means "the object is standing still" and its Dena'ina name means "the one that watches us". The name was given in 1939 in honor of the pioneers of the Matanuska agricultural colony of the mid-1930s. The Pioneer Ridge Trail leads up the eastern shoulder, beginning below 200', it allows access to the South summit. The North summit, and true summit of Pioneer Peak does not have a trail, and advanced mountaineering techniques are required. The first ascent of this peak was made June 1936 by Vernon Haik and John Wolffe via the Northwest Face.
Boggs Peak is a 4,518-foot (1,377 m) mountain summit located in the Chugach Mountains, in Anchorage Municipality in the U.S. state of Alaska. The peak is situated in Chugach National Forest, 4 mi (6 km) north of Portage Lake, 6 mi (10 km) northwest of Whittier, Alaska, and 1.24 mi (2 km) northeast of Begich Peak, which is its nearest higher peak. Precipitation runoff from the mountain drains into tributaries of Portage Creek and Twentymile River before emptying into Turnagain Arm. Topographic relief is significant as the summit rises approximately 4,200 feet (1,280 m) above Bear Valley in 1.15 miles (1.85 km).
Begich Peak is a 4,623-foot (1,409 m) mountain summit located in the Chugach Mountains, in Anchorage Municipality in the U.S. state of Alaska. The peak is situated in Chugach National Forest, 2.5 mi (4 km) north of Portage Lake, 5 mi (8 km) northwest of Whittier, Alaska, 1.8 mi (3 km) east of Portage Peak, and 1.24 mi (2 km) southwest of Boggs Peak. Precipitation runoff from the mountain drains into tributaries of Portage Creek and Twentymile River before emptying into Turnagain Arm. Topographic relief is significant as the summit rises approximately 4,400 feet (1,340 m) above Bear Valley in 1.25 miles (2.01 km).
The Mitre is a 6,651 ft (2,030 m) mountain summit located in the western Chugach Mountains, in Anchorage Municipality in the U.S. state of Alaska. The mountain is situated in Chugach State Park, 30 mi (48 km) east of Anchorage, three miles (4.8 km) northeast of Bellicose Peak, and 5.5 mi (9 km) south-southeast of Eklutna Lake. The nearest higher peak is Benign Peak, 2.4 mi (4 km) to the west-northwest, on the opposite side of the Eklutna Glacier. Although modest in elevation, relief is significant since the western aspect of the mountain rises 4,000 feet above this glacier in approximately half a mile. In Europe, "mitre" is the term used for a sharp, symmetrical rocky peak such as this one. The Mitre's descriptive name was submitted for consideration by the Mountaineering Club of Alaska as suggested by Dr. Rodman Wilson (1921–2003) of Anchorage after he returned from a European vacation. The Mitre name was officially adopted in 1966 by the U.S. Board on Geographic Names. In the Denaʼina language, this mountain is known as Idlu Bena Dghelaya, meaning Mountain of Plural Objects Lake.
Benign Peak is a 7,235 ft (2,210 m) elevation mountain summit located in the western Chugach Mountains, in Anchorage Municipality in the U.S. state of Alaska. The mountain is situated in Chugach State Park, 28 mi (45 km) east of Anchorage, and 4.5 mi (7 km) south of Eklutna Lake. The nearest higher peak is Mount Rumble, 2.2 mi (4 km) to the southwest, and The Mitre is set 2.4 mi (4 km) east-southeast, on the opposite side of the Eklutna Glacier. Although modest in elevation, relief is significant since the eastern aspect of the mountain rises over 5,000 feet above this glacier in approximately one mile. This peak belongs to a group of peaks in the Eklutna River drainage which start with the letter "B", such as Bold Peak, Bashful Peak, Baleful Peak, and Mt. Beelzebub. Benign Peak was so named in 1965 by the Mountaineering Club of Alaska because "nearby Bellicose Peak was a much harder climb, while this one's nature was quite benign since the rock was not too rotten and the weather wasn't too bad." Benign Peak's name was officially adopted in 1966 by the U.S. Board on Geographic Names. The first ascent of this mountain was made in August 1965 by Art Davidson and John Vincent Hoeman by ascending the East Face, and descending the South Gully.
Calliope Mountain is a 6,821-foot (2,079 m) mountain summit located in the Chugach Mountains, in Anchorage Municipality in the U.S. state of Alaska. Calliope Mountain is situated in Chugach State Park, 20 mi (32 km) east-southeast of downtown Anchorage, and 2.1 mi (3 km) southwest of Eagle Peak, which is its nearest higher neighbor. The first ascent of the peak was made June 24, 1967, by W.E. Hauser and B.P. Hansen, who proposed naming it "Icy Peak", but their fellow members at the Mountaineering Club of Alaska persuaded them to adopt a more distinctive name that would be in keeping with the music theme of the immediate area. Within three miles of the peak there is a Symphony Lake, Concerto Peak, Flute Peak, Triangle Peak, Organ Mountain, Cantata Peak, and Hurdygurdy Mountain. The mountain's calliope name was officially adopted in 1969 by the U.S. Board on Geographic Names.
Tazcol Peak is a 7,850-foot-elevation (2,393-meter) mountain summit located 18 miles (29 km) north-northwest of Valdez in the U.S. state of Alaska. This remote glaciated mountain is set in the Chugach Mountains on land managed by Chugach National Forest. Precipitation runoff from the mountain drains south to Prince William Sound and north to Tazlina Lake → Tazlina River → Copper River. Topographic relief is significant as the summit rises 4,350 feet (1,326 m) above the East Branch of the Columbia Glacier in 1.4 mile (2.25 km). The peak's name was applied in 1959 by mountaineer and glaciologist Lawrence E. Nielsen (1917–1992), and the toponym was officially adopted in 1965 by the U.S. Board on Geographic Names. The word "Tazcol" is a portmanteau blending the names of the Tazlina Glacier and Columbia Glacier which flow from this mountain's north and south slopes respectively.
Tail Feather Peak is a 4,960-foot-elevation (1,512-meter) mountain summit in the U.S. state of Alaska. This mountain is located 14 miles (23 km) southeast of Anchorage in the Chugach Mountains and Chugach State Park. Precipitation runoff from the mountain drains into Ship Creek, thence Knik Arm. Topographic relief is significant as the summit rises 2,560 feet (780 m) in 0.75 mile (1.2 km) on the west slope. This mountain's toponym has not been officially adopted by the U.S. Board on Geographic Names.
Birds Eye Peak is a 4,970-foot-elevation (1,515-meter) mountain summit in the U.S. state of Alaska. This mountain is located 15 miles (24 km) southeast of Anchorage in the Chugach Mountains and Chugach State Park. Precipitation runoff from the mountain drains north to Knik Arm via Ship Creek and south to Turnagain Arm via Bird Creek. Topographic relief is significant as the summit rises 3,970 feet (1,210 m) above Bird Creek in less than two miles (3.2 km). This mountain's toponym has not been officially adopted by the U.S. Board on Geographic Names.
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