Avalanche Spire is a mountain in the Alaska Range located 18.64 miles (30.00 km) south of Denali.[1] 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.[3]
| Avalanche Spire | |
|---|---|
 North aspect | |
| Highest point | |
| Elevation | 10,105 ft (3,080 m)[1] |
| Prominence | 2,655 ft (809 m)[1] |
| Isolation | 6.10 mi (9.82 km)[2] |
| Coordinates | 62°48′26″N 151°09′01″W / 62.80722°N 151.15028°W[3] |
| Geography | |
  Avalanche Spire Location in Alaska | |
| Country | United States |
| State | Alaska |
| Borough | Matanuska-Susitna |
| Protected area | Denali National Park |
| Parent range | Alaska Range |
| Topo map | USGS Talkeetna D-3 |
| Geology | |
| Rock type | Granite |
| Climbing | |
| First ascent | Margaret Young[4] circa 1965 |
| Easiest route | Technical Climb |
Climate
editBased on the Köppen climate classification, Avalanche Spire is located in a tundra climate zone with long, cold, snowy winters, and cool summers.[5] Weather systems are forced upwards by the Alaska Range (orographic lift), causing heavy precipitation in the form of snowfall. Winter temperatures can drop below −10 °F with wind chill factors below −20 °F. This climate supports the Kahiltna Glacier west of the peak and smaller unnamed tributary glaciers surrounding the peak. The months May through June offer the most favorable weather for viewing or climbing.
See also
editReferences
edit- ^ a b c "Avalanche Spire". Peakbagger.com. Retrieved 2013-07-03.
- ^ "Avalanche Spire - 10,105' AK". listsofjohn.com. Retrieved 2024-01-07.
- ^ a b "Avalanche Spire". Geographic Names Information System. United States Geological Survey, United States Department of the Interior. Retrieved 2024-01-07.
- ^ Lew Freedman, Denali Ranger: A Life of Drama and Adventure on America's Tallest Peak, Epicenter Press, 2017.
- ^ Peel, M. C.; Finlayson, B. L.; McMahon, T. A. (2007). "Updated world map of the Köppen−Geiger climate classification". Hydrol. Earth Syst. Sci. 11 (5): 1633. Bibcode:2007HESS...11.1633P. doi:10.5194/hess-11-1633-2007. ISSN 1027-5606.
External links
edit- Avalanche Spire weather forecast: Mountain-forecast.com
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