Opheim Hills and the Dahl Hills define the high country of northern Valley County, Montana, in this early 21st-century record. The landscape is deeply carved by drainage features such as Deep Coulee, Furlong Coulee, and Paudois Coulee, which channel water toward the South Creek and Middle Fork Porcupine Cr. This area is characterized by large-scale ranching and remote infrastructure, evidenced by the Floyd Ranch Airport located in the northern township.
25 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.
1919 · Boundary
USGS Topo · 1:125,000
1954 · Glasgow
USGS Topo · 1:250,000
1957 · Glasgow
USGS Topo · 1:250,000
1958 · Glasgow
USGS Topo · 1:250,000
1973 · Baylor
USGS Topo · 1:24,000
1973 · Opheim
USGS Topo · 1:24,000
1973 · Roanwood
USGS Topo · 1:24,000
1984 · O'Juel Lake
USGS Topo · 1:24,000
1984 · Opheim
USGS Topo · 1:100,000
1984 · Dodge Reservoir
USGS Topo · 1:24,000