Porphyry Flat
Flat in Juab County, Utah · on the USGS Tintic Junction quadrangle
39.96634, -112.12800
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Tintic Junction, UT
USGS topo, 2023
Pony Express National Backcountry Byway
BLM Utah
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
Nearby
Name, class, county and location: USGS Geographic Names Information System (public domain).