The Greenhorn Mountains are a mountain range of the Southern Sierra Nevada, in California. They are protected within the Sequoia National Forest.

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Greenhorn Mountains
The Greenhorn Mountains
Highest point
Elevation	2,523 m (8,278 ft)
Geography
Greenhorn Mountains Location of Greenhorn Mountains in California[1]
Country	United States
State	California
District	Kern County, Tulare County
Range coordinates	35°50′59.820″N 118°34′21.315″W
Topo map	USGS Tobias Peak

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The range is located in eastern Kern County and Tulare County. They are east of the San Joaquin Valley, northeast of Bakersfield, and form the west side of the Kern River Valley.

The range reaches an elevation of 8,295 feet (2,528 m) at Sunday Peak, located just south of Portuguese Pass.

The lower Kern Canyon is a dramatic and deep canyon cut by the Kern River through the Greenhorn Mountains to the San Joaquin Valley. State Route 178 follows the canyon up to the Kern River Valley.

During the Gold Strike of 1854 miners crossing the Greenhorn Mountains founded the town of Keyesville.^[2]

The Greenhorn Mountains contain a variety of native California flora and fauna. One wildflower found here is the Yellow mariposa lily (Calochortus luteus), which is at the extreme southern end of its distribution range.^[3] The Marsh checkerbloom (Sidalcea ranunculacea) is endemic to the range and adjacent Sierra Nevada foothills.

The Greenhorn Mountains slender salamander (Batrachoseps altasierrae) is endemic to the Greenhorn Mountains.^[4]

• Kern River Canyon — upper section.