Mount Shasta is a potentially active volcano at the southern end of the Cascade Range in Siskiyou County, California. At an elevation of 14,179 ft (4,322 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, 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.

The Shastan peoples are a group of linguistically related Indigenous peoples from the Klamath Mountains. They traditionally inhabited portions of several regional waterways, including the Klamath, Salmon, Sacramento and McCloud rivers. Shastan lands presently form portions of the Siskiyou, Klamath and Jackson counties. Scholars have generally divided the Shastan peoples into four languages, although arguments in favor of more or fewer existing have been made. Speakers of Shasta proper-Kahosadi, Konomihu, Okwanuchu, and Tlohomtah’hello "New River" Shasta resided in settlements typically near a water source. Their villages often had only either one or two families. Larger villages had more families and additional buildings used by the community.