Grindstone Lake
Reservoir in Montezuma County, Colorado · on the USGS Orphan Butte quadrangle
37.51781, -108.05469
Maps that show Grindstone Lake
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Orphan Butte, CO
USGS topo, 2022
Rico, CO
USGS historical 15-minute topo (1897)
Rico, CO
USGS historical 15-minute topo (1898)
Rico, CO
USGS historical 15-minute topo (1899)
Columbine District Motor Vehicle Use Map (MVUM)
San Juan National Forest (2026)
Dolores District Motor Vehicle Use Map
San Juan National Forest (2026)
IFR Enroute Low Altitude Chart L-08 (U.S.)
FAA, 2026-10-29
IFR Enroute Low Altitude Chart L-09 (U.S.)
FAA, 2026-10-29
IFR Enroute High Altitude Chart H-04 (U.S.)
FAA, 2026-10-29
IFR Enroute High Altitude Chart H-03 (U.S.)
FAA, 2026-10-29
Nearby
Name, class, county and location: USGS Geographic Names Information System (public domain).