Ptarmigan Pass
Gap in Summit County, Colorado · on the USGS Dillon quadrangle
39.68637, -106.00363
Maps that show Ptarmigan Pass
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Dillon, CO
USGS topo, 2022
Dillon, CO
USGS historical 15-minute topo (1929)
Dillon, CO
USGS historical 15-minute topo (1934)
South Half Motor Vehicle Use Map (MVUM)
Arapaho and Roosevelt National Forests & Pawnee National Grassland
Dillon Ranger District Motor Vehicle Use Map (MVUM)
White River National Forest (2026)
Dillon Ranger District Over-Snow Vehicle Use Map
White River National Forest (2026)
IFR Enroute Low Altitude Chart L-10 (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-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-04 (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
Nearby
Name, class, county and location: USGS Geographic Names Information System (public domain).