Thunder Mountain

Thunder Mountain is a summit in the Sierra Nevada with two distinct peaks surrounded by evergreen forests and alpine meadows. The paired peaks create varying elevations and different experiences as you move between them.

The name comes from the frequent thunderstorms that occur in this part of the Sierra Nevada. Forest Service personnel observed these weather patterns and gave the mountain its name based on this defining characteristic.

The mountain serves as an essential part of the Mokelumne Wilderness, contributing to environmental preservation and outdoor recreation activities.

Access is via Highway 88 with parking available at the trailhead for visitors. The trail offers marked sections with varying difficulty levels as you progress toward the summit.

The highest point is marked by a rock formation located just below the true summit. This subtle geological detail is often missed by hikers and adds an interesting navigational element to the climb.

Location: California

GPS coordinates: 38.67415,-120.09087

Latest update: December 14, 2025 11:24