Big Sandy Reservoir is a lake in Sublette County, Wyoming. Its current pool elevation is about 6743 ft (USGS gauge 09213700, 2026-08-14 17:15). We never estimate missing readings — a “—” means no current source.
Full conditions, things to do, and where to stay, eat, and rent on the Big Sandy Reservoir guide. More: boat rentals · cabins & rentals · fishing · things to do.