The high-altitude drainage systems of Beaverhead National Forest dominate this topography in southwest Montana. At the center of the landscape lies the expansive Horse Prairie, a region defined by its wide, open basins including Poverty Flats and Coyote Flats. The presence of the Mansfield-Prohosky Ditch, Prohosky Ditch, and Pierce Ditch indicates a managed water system designed to support ranching or agriculture in this arid high-country environment. Significant landmarks such as Bachelor Mountain and Red Butte rise above the basin floor, providing vertical relief in a territory carved by numerous drainages like Horse Prairie Creek and Bloody Dick Creek. Transportation is limited to a handful of routes, including MT-324 and Bachelor Mountain Road, which follow the natural contours of the valley floors to connect these remote mountain landmarks.
31 named features on this map. Tap any name to fly to it.
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This is the sole edition of this map. No revisions or reprints were ever made.
1955 · Dubois
USGS Topo · 1:250,000
1955 · Dillon
USGS Topo · 1:250,000
1957 · Dillon
USGS Topo · 1:250,000
1958 · Dubois
USGS Topo · 1:250,000
1958 · Dillon
USGS Topo · 1:250,000
1959 · Grant
USGS Topo · 1:62,500
1962 · Dillon
USGS Topo · 1:250,000
1965 · Dillon
USGS Topo · 1:250,000
1965 · Jeff Davis Peak
USGS Topo · 1:24,000
1965 · Hansen Ranch
USGS Topo · 1:24,000