Stanislaus Peak is a prominent peak near

Sonora Pass Sonora Pass (el. 9,624 ft. / 2,933 m.) is a mountain pass in the Sierra Nevada in California. It is the second-highest in California and in the Sierra Nevada. lower by 321 ft. (about 98 m.) than Tioga Pass to the south. State Route 108 ...

in the

Sierra Nevada The Sierra Nevada () is a mountain range in the Western United States, between the Central Valley of California and the Great Basin. The vast majority of the range lies in the state of California, although the Carson Range spur lies primarily ...

range in California, United States. It is located in the Carson–Iceberg Wilderness in the federally-managed

Stanislaus National Forest Stanislaus National Forest is a U.S. National Forest which manages of land in four counties in the Sierra Nevada in Northern California. It was established on February 22, 1897, making it one of the oldest national forests. It was named after t ...

Geology

Stanislaus peak is an ancient volcanic cone composed of

andesite Andesite () is a volcanic rock of intermediate composition. In a general sense, it is the intermediate type between silica-poor basalt and silica-rich rhyolite. It is fine-grained (aphanitic) to porphyritic in texture, and is composed predomi ...

intrusion. Near the base of the mountain is a

granite Granite () is a coarse-grained (phaneritic) intrusive igneous rock composed mostly of quartz, alkali feldspar, and plagioclase. It forms from magma with a high content of silica and alkali metal oxides that slowly cools and solidifies undergro ...

outcropping formed during the Late Triassic to Late Cretaceous periods. The granite features are also found in nearby areas, such as

Yosemite National Park Yosemite National Park ( ) is an American national park in California, surrounded on the southeast by Sierra National Forest and on the northwest by Stanislaus National Forest. The park is managed by the National Park Service and covers an ar ...

and the

Emigrant Wilderness The Emigrant Wilderness of Stanislaus National Forest is a wilderness area in the Sierra Nevada. It is bordered by Yosemite National Park on the south, the Toiyabe National Forest and the Hoover Wilderness on the east, and State Route 108 ...

Hiking

The scramble to the summit of Stanislaus Peak in California

The peak can be hiked via the trail from Saint Mary's Pass near Sonora Pass. The trail ends at the granite outcropping just below the peak and route finding and a class 2 scramble is required to reach the summit via the easiest approach from the southeast face.

References

{{reflist Mountains of Northern California Sierra Nevada (United States) Stanislaus National Forest