Jack Mountain
Summit in Jefferson County, Montana · on the USGS Helena quadrangle
46.52190, -112.02761
Maps that show Jack Mountain
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Helena, MT
USGS topo, 2024

Helena Special, MT
USGS historical 15-minute topo (1899)

Helena, MT
USGS historical 15-minute topo (1950)

Elkhorn Mountains Over-Snow Vehicle Use Map (sheet)
Helena-Lewis and Clark National Forest (2019)

Divide, South Half Over-Snow Vehicle Use Map (sheet)
Helena-Lewis and Clark National Forest (2019)

Helena and Townsend Ranger Districts Over-Snow Vehicle Use Map
Helena-Lewis and Clark National Forest (2019)

IFR Enroute Low Altitude Chart L-13 (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).