Dunderberg Peak

Dunderberg Peak is a mountain summit in the Sierra Nevada range of California, rising to approximately 12,400 feet. The peak stands within Humboldt-Toiyabe National Forest and features steep terrain with significant vertical prominence.

The peak was originally called Castle Peak but was renamed Dunderberg by the Wheeler Survey expedition in 1878 after discovering mining activity on its northern slopes. This renaming reflected the era of geological exploration and mapping in the Sierra Nevada.

The peak stands within Humboldt-Toiyabe National Forest, representing a significant landmark for mountaineers and outdoor enthusiasts in the Sierra Nevada region.

The peak can be reached via several hiking trails, with access best from June through October when snow has melted. Visitors should come prepared for demanding terrain and bring proper footwear and navigation tools.

A maintained jeep road goes directly over the summit, winding through a series of steep hairpin turns. This vehicular access is unusual for a high mountain peak and allows different groups of visitors to experience the top.

Location: Mono County

Part of: Sierra Peaks Section Peaks List

GPS coordinates: 38.06464,-119.27432

Latest update: December 14, 2025 20:32