Mount Linn, Mountain summit in Tehama County, California, US

Mount Linn is a mountain summit in the Yolla Bolly Mountains that forms part of a larger range system in northern California's coastal region. The peak rises prominently above the surrounding forest landscape with steep slopes characteristic of this mountain area.

Mount Linn was named by John C. Frémont after Lewis F. Linn, the Missouri senator who pressed for the acquisition of the Oregon Territory. The peak's other name, South Yolla Bolly Mountain, comes from the Wintu language and means "snowy peak."

The name South Yolla Bolly Mountain comes from the Wintu language and means "snowy peak", a reference to the heavy winter snowfall at this elevation. The mountain lies within the Yolla Bolly-Middle Eel Wilderness, in the Shasta-Trinity National Forest section.

The summit lies in the Shasta-Trinity National Forest section of the Yolla Bolly-Middle Eel Wilderness. Trails are unmarked, so carry a map and compass. Snowfall is heavy in winter and the average annual temperature near the top is low, so plan for cold even outside winter. Square Lake, a tarn in a glacial cirque on the north slope, is the main water landmark.

A rare grove of foxtail pines grows near the summit, representing one of California's most isolated populations of this species. This tree thrives only in a few high-elevation regions and is adapted to extreme conditions, making it especially notable for nature observers.