Hetch Hetchy Reservoir is a lake in Tuolumne County, California. Its current pool elevation is about 3788 ft (USGS gauge 11275500, 2026-08-16 22:00). We never estimate missing readings — a “—” means no current source.
Full conditions, things to do, and where to stay, eat, and rent on the Hetch Hetchy Reservoir guide. More: boat rentals · cabins & rentals · fishing · things to do.