Mount Shasta (Karuk: Úytaahkoo or "White Mountain") is a dormant volcano at the southern end of the Cascade Range in Siskiyou County, California. At an elevation of 14,179 feet (4321.8 m), it is the second-highest peak in the Cascades and the fifth-highest in the state.
Mount Shasta has an estimated volume of 85 cubic miles (350 km3), which makes it the most voluminous stratovolcano in the Cascade Volcanic Arc. The mountain and surrounding area are part of the Shasta–Trinity National Forest.