North Chapin Mountain
Summit in Cassia County, Idaho · on the USGS South Chapin Mountain quadrangle
42.49551, -113.16873
Maps that show North Chapin Mountain
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South Chapin Mountain, ID
USGS topo, 2023

Sublett, ID
USGS historical 15-minute topo (1958)

Back: Albion, Black Pine, Raft River & Sublett Divisions Motor Vehicle Use Map (MVUM)
Sawtooth National Forest (2026)

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 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
Name, class, county and location: USGS Geographic Names Information System (public domain).