Alta Reservoir Number 1
Reservoir in San Miguel County, Colorado · on the USGS Ophir quadrangle
37.82856, -107.80788
Maps that show Alta Reservoir Number 1
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Ophir, CO
USGS topo, 2022
Telluride, CO
USGS historical 15-minute topo (1897)
Telluride, CO
USGS historical 15-minute topo (1904)
Telluride, CO
USGS historical 15-minute topo (1955)
Columbine District Motor Vehicle Use Map (MVUM)
San Juan National Forest (2026)
Mountain Division Motor Vehicle Use Map (MVUM)
Grand Mesa, Uncompahgre and Gunnison National Forests (2025)
IFR Enroute Low Altitude Chart L-09 (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-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).