Donoho Peak
Climate
Based on the Köppen climate classification, Donoho Peak is located in a subarctic climate zone with long, cold, snowy winters, and cool summers. 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. Temperatures can drop below −20 °C with wind chill factors below −30 °C. The months May through June offer the most favorable weather for viewing and climbing.
Geology
Donoho Peak and the ridge extending to the north separate Gates and Root Glaciers. The north-dipping section exposes most of the definitive Triassic and Jurassic units of the Wrangellia Terrane, overlain unconformably at the north end of the ridge by the Miocene Frederika Formation and the Miocene to Holocene Wrangell Lava. The peak is underlain by a conspicuous overturned syncline, which is cored by Nizina limestone, and forms a gray-colored zigzag on the east face of the peak.
See also
Gallery
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Donoho's west side shows limestone overlying darker greenstone
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Donoho Peak (left) with historic Kennecott Mill site
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Mt. Blackburn, Donoho Peak, and Kennecott Mill town.
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Donoho Peak's east aspect above Root Glacier
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Aerial view of north aspect
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Donoho Peak centered
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Donoho Lakes in Donoho Basin
References
- ^ "Donoho Peak, Alaska". Peakbagger.com. Retrieved 2020-02-12.
- ^ Donoho Peak, listsofjohn.com
- ^ "Donoho Peak". Geographic Names Information System. United States Geological Survey, United States Department of the Interior. Retrieved 2020-02-12.
- ^ Peel, M. C.; Finlayson, B. L.; McMahon, T. A. (2007). "Updated world map of the Köppen−Geiger climate classification" (PDF). Hydrol. Earth Syst. Sci. 11 (5): 1633. Bibcode:2007HESS...11.1633P. doi:10.5194/hess-11-1633-2007. ISSN 1027-5606. S2CID 9654551.
- ^ "Archived copy" (PDF). Archived from the original (PDF) on 2017-02-20. Retrieved 2020-02-22.
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: CS1 maint: archived copy as title (link)
External links
- Weather forecast: Donoho Peak
- 2021 fatality: Anchorage Daily News