The Beaver Dam Mountains are a 23 miles (37 km) long mountain range located mostly in extreme southwest Washington County, Utah, west of St. George, with the south of the range extending into the Arizona Strip.

The northern massif is anchored by the highpoint (photo), of the West Mountain Peak (Washington County), 7,680 feet (2,341 m).

[2] The center of the range is adjacent to the Highway 91 mountain pass, and Tahoari (peak), 5,523 feet (1,683 m).

[1][3] The mountains are the only place in Utah where Dudleya arizonica, a rare plant of the family Crassulaceae, can be found.

[4] The center of the range at about 4,731 ft (1,442 m),[1] (Utah Hill Summit), can be easily accessed from the west-southwest by Highway 91, from Littlefield, Arizona.