Granite Basin Lake, a reservoir located near Prescott, in Yavapai County, North Central Arizona.

Granite Basin Lake is a reservoir in Prescott National Forest, Yavapai County, Arizona, next to the Granite Mountain Wilderness Area. Its dam was begun by the Civilian Conservation Corps in 1937 and finished in 1939. A tract of USFS Recreation Residences stands beside the water, which holds largemouth bass, sunfish and channel catfish.

The dam was built between 1937 and 1939 by the Civilian Conservation Corps, a Depression-era agency created to generate employment and develop public works. This project helped establish a stable water supply in the mountain region.

The lake is about 15 minutes from Prescott and easily reached via Montezuma Street, Whipple Street, and Iron Springs Road. There are campsites, picnic areas, a boat launch, and several trails for various skill levels.

A segment of the 1987 horror film Creepshow 2, titled "The Raft", was filmed at Granite Basin Lake. The lake holds largemouth bass, sunfish and channel catfish, and a tract of USFS Recreation Residences stands beside the water.