Half Barrel Detention Reservoir
Reservoir in Valley County, Montana · on the USGS Brown Pass quadrangle
47.86608, -106.97760
Maps that show Half Barrel Detention Reservoir
Get them in the map app
Brown Pass, MT
USGS topo, 2024
Collins Ranch, MT
USGS historical 15-minute topo (1958)
2024 CMR NWR Guide Map
Charles M. Russell National Wildlife Refuge
IFR Enroute High Altitude Chart H-02 (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-01 (U.S.)
FAA, 2026-10-29
Nearby
Name, class, county and location: USGS Geographic Names Information System (public domain).