Sourdough Peak

Sourdough Peak is a 6,201-foot mountain on the southern edge of Alaska’s Wrangell Mountains in Wrangell-St. Elias National Park and Preserve, north of the Nizina River near McCarthy. Its south slope holds a notable rock glacier, reflecting the area’s cold subarctic environment of long snowy winters, cool summers, and heavy precipitation caused by moist air rising over the mountains. Winter temperatures can drop below −20 °C, with wind chill below −30 °C. The peak’s name comes from the mining era and was in use by early prospectors by 1908, linking it to the term for an experienced prospector. May and June are the most favorable months for viewing and climbing.

McCarthy, Alaska · United States