Grover Hot Springs State Park, Natural hot springs reserve in Alpine County, California.

Grover Hot Springs State Park is a nature reserve in the Sierra Nevada mountains that includes thermal pools, pine forests, and sagebrush meadows at about 5,900 feet elevation. Hiking trails cross the landscape and connect different areas of the terrain.

The Washoe people used the springs, which they called dih-teh-ee lo-om, for their health and spiritual value. In 1878 Alvin Merrill Grover owned a share of the land and built a bathhouse and a fence around the springs. The park itself was established in 1959 and named after him.

The Washoe people call the springs dih-teh-ee lo-om, meaning "our place, hot springs," and the thermal waters hold health and spiritual value for them. Today the site is a state park campground and picnic area where visitors soak in a pool fed by six mineral springs at 148 °F, cooled to 102–104 °F in a holding tank.

An entrance fee applies, and the hot pools operate year-round but close temporarily during thunderstorms for safety. Plan your visit to allow time for exploring the forests and trails as well as soaking.

The pool's yellow-green tint comes from a reaction between bromine, used to sanitize the water, and mineral salts naturally present in the spring water. The six springs themselves emerge at about 148 °F and are cooled in a holding tank to keep the pool at 102–104 °F.