
The Sacagawea River winds through this section of Fergus County, cutting across a landscape defined by sharp elevation changes and high ridges. The northern portion of the map is dominated by the Upper Missouri River Breaks National Monument, a protected area known for its distinct geology. Prominent local features like Griffee Ridge provide natural landmarks for navigating the complex network of drainage basins, including Griffee Coulee, Dexter Coulee, and Fargo Coulee.
14 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.
1943 · Landusky
USGS Topo · 1:125,000
1954 · Hessler Ridge
USGS Topo · 1:24,000
1954 · Lewistown
USGS Topo · 1:250,000
1959 · Lewistown
USGS Topo · 1:250,000
1984 · Zortman
USGS Topo · 1:100,000
1985 · Griffee Coulee
USGS Topo · 1:24,000
1985 · Thompson Coulee
USGS Topo · 1:24,000
1985 · Sloan Reservoir
USGS Topo · 1:24,000
1985 · Mitchell Crossing
USGS Topo · 1:24,000
1985 · Roy
USGS Topo · 1:24,000