Duffy Mountain
Summit in Moffat County, Colorado · on the USGS Axial quadrangle
40.36908, -107.76859
Maps that show Duffy Mountain
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Axial, CO
USGS topo, 2022
Axial, CO
USGS historical 15-minute topo (1912)
Axial, CO
USGS historical 15-minute topo (1914)
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-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).