John Martin Reservoir is a lake in Bent County, Colorado. Its current pool elevation is about 3802 ft (USGS gauge 07130000, 2026-08-15 23:15). We never estimate missing readings — a “—” means no current source.
Full conditions, things to do, and where to stay, eat, and rent on the John Martin Reservoir guide. More: boat rentals · cabins & rentals · fishing · things to do.