Portland Mountain
Summit in Lemhi County, Idaho · on the USGS Gilmore quadrangle
44.45528, -113.32967
Maps that show Portland Mountain
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Gilmore, ID
USGS topo, 2023
Gilmore, ID
USGS historical 15-minute topo (1957)
Challis Travel Map
BLM Idaho (2024)
South West Over-Snow Vehicle Use Map
Beaverhead-Deerlodge National Forest
North Zone Over-Snow Vehicle Use Map
Salmon-Challis National Forest (2024)
South 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).