Helena Valley Regulating Reservoir
Reservoir in Lewis and Clark County, Montana · on the USGS Hauser Lake quadrangle
46.63958, -111.87227
Maps that show Helena Valley Regulating Reservoir
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Hauser Lake, MT
USGS topo, 2024
East Helena, MT
USGS historical 15-minute topo (1950)
Big Belt Mountains, North 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
Name, class, county and location: USGS Geographic Names Information System (public domain).