
Upper Missouri River Breaks National Monument defines the northeastern corner of this Chouteau County landscape, where the breaks begin their descent toward the Missouri River corridor. The terrain is characterized by complex drainage patterns, including Jackson Coulee, Rattlesnake Coulee, and Homestead Coulee, which cut through the high plains. Distinctive geological formations such as Chimney Rock and Black Rock serve as prominent landmarks amidst a network of rural routes like Big Bend Rd and Sag Rd. The presence of McCullen Spring and a geographic depression known as The Sag indicate the vital role of water and topography in this ranching country. This recent survey also documents the local road system reaching toward the former site of a local landmark along Eagle Butte School Rd.
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This is the sole edition of this map. No revisions or reprints were ever made.
1890 · Fort Benton
USGS Topo · 1:250,000
1892 · Fort Benton
USGS Topo · 1:250,000
1897 · Fort Benton
USGS Topo · 1:250,000
1919 · Big Sandy
USGS Topo · 1:125,000
1953 · Boggs Island
USGS Topo · 1:24,000
1953 · Eagle Buttes
USGS Topo · 1:24,000
1953 · Verona
USGS Topo · 1:24,000
1953 · Big Bend School
USGS Topo · 1:24,000
1953 · Lonetree Coulee
USGS Topo · 1:24,000
1953 · Pilot Rock
USGS Topo · 1:24,000