Published in 1912 by the United States Coast and Geodetic Survey, the mountain takes its name from the Double Glacier which the peak overlooks.[5] The first ascent of the mountain was made May 19, 1973, by Steve Hackett, John Samuelson, Helmut Tschaffert, Toby Wheeler, Daniel Hurd, and Daniel Jones via the steep northwest snow face.[6] The months May through June offer the most favorable weather for viewing or climbing the peak.
Climate
Based on the Köppen climate classification, Double Peak is located in a subarctic climate zone, with long, cold, snowy winters, and cool summers.[7] Temperatures can drop below −20 °C with wind chill factors below −30 °C. Precipitation runoff from the mountain drains into Cook Inlet via Big River.
^Peel, M. C.; Finlayson, B. L.; McMahon, T. A. (2007). "Updated world map of the Köppen−Geiger climate classification". Hydrol. Earth Syst. Sci. 11. ISSN1027-5606.