Trinity Lake, previously called Clair Engle Lake, is an artificial lake on the Trinity River formed by the Trinity Dam and located in Trinity County, California. The dam was built by the U.S. Bureau of Reclamation. The lake's capacity is 2,447,650 acre·ft (3,019,130 dam3), making it one of the largest reservoirs in California. The lake's surface is at 2,370 ft (720 m) above MSL.