Porcupine Spring
Spring in Lemhi County, Idaho · on the USGS Ulysses quadrangle
45.49034, -114.21184
Maps that show Porcupine Spring
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Ulysses, ID
USGS topo, 2024
Ulysses Mtn, ID
USGS historical 15-minute topo (1960)
West Fork Ranger District Motor Vehicle Use Map (MVUM)
Bitterroot National Forest (2026)
South Over-Snow Vehicle Use Map
Bitterroot National Forest
North Zone Over-Snow Vehicle Use Map
Salmon-Challis National Forest (2024)
IFR Enroute Low Altitude Chart L-11 (U.S.)
FAA, 2026-10-29
IFR Enroute Low Altitude Chart L-13 (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
IFR Enroute Low Altitude Chart L-01 (Alaska)
FAA, 2026-10-29
Nearby
Name, class, county and location: USGS Geographic Names Information System (public domain).