Porphyry Mountain (Historical)
Summit in Gila County, Arizona · on the USGS Inspiration quadrangle
33.41228, -110.96456
Maps that show Porphyry Mountain (Historical)
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Inspiration, AZ
USGS topo, 2026
Globe, AZ
USGS historical 15-minute topo (1901)
Globe, AZ
USGS historical 15-minute topo (1902)
IFR Enroute Low Altitude Chart L-05 (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).