Griggs Reservoir
Reservoir in Grand County, Colorado · on the USGS Sheephorn Mountain quadrangle
39.99814, -106.38153
Maps that show Griggs Reservoir
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Sheephorn Mountain, CO
USGS topo, 2022
Mount Powell, CO
USGS historical 15-minute topo (1933)
Mt Powell, CO
USGS historical 15-minute topo (1940)
Eagle-Holy Cross Ranger District Over-Snow Vehicle Use Map
White River National Forest (2026)
IFR Enroute Low Altitude Chart L-09 (U.S.)
FAA, 2026-10-29
IFR Enroute High Altitude Chart H-05 (U.S.)
FAA, 2026-10-29
IFR Enroute Low Altitude Chart L-11 (U.S.)
FAA, 2026-10-29
IFR Enroute High Altitude Chart H-03 (U.S.)
FAA, 2026-10-29
IFR Enroute High Altitude Chart H-01 (U.S.)
FAA, 2026-10-29
Name, class, county and location: USGS Geographic Names Information System (public domain).