The Atsugewi are Native Americans residing in northeastern California, United States. Their traditional lands are near Mount Shasta, specifically the Pit River drainage on Burney, Hat, and Dixie Valley or Horse Creeks. They are closely related to the Achomawi and consisted of two groups. The Atsugé traditionally are from the Hat Creek area, and the Apwaruge are from the Dixie Valley. They lived to the south of the Achomawi.

The Pit River is a major river draining from northeastern California into the state's Central Valley. The Pit, the Klamath and the Columbia are the only three rivers in the U.S. that cross the Cascade Range.