
The Charles M Russell National Wildlife Refuge and the Upper Missouri River Breaks National Monument converge in this high-plains landscape of Fergus County. The terrain is defined by the prominent Knox Ridge, which serves as a natural corridor for Knox Ridge Rd and the small Knox Ridge Airport. This area represents a transition from managed rangelands to protected breaks, where drainage features like Fargo Coulee and Armells Creek carve through the sedimentary layers toward the Missouri River.
16 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 · Baker Monument
USGS Topo · 1:24,000
1954 · Bell Ridge West
USGS Topo · 1:24,000
1954 · Grand Island
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