
Deeply incised drainage systems define the rugged high plains landscape of Chouteau County in the early 1970s. The terrain is dominated by the intricate network of Spring Coulee and Ninemile Coulee, which snake across the quadrangle, illustrating the erosive power of seasonal water in this semi-arid region. These coulees serve as the primary topographical landmarks, creating a complex series of ridges and draws that dictate the local land use and transportation routes.
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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
1953 · Tunis
USGS Topo · 1:24,000
1953 · O'Hanlon Coulee
USGS Topo · 1:24,000
1954 · Great Falls
USGS Topo · 1:250,000
1954 · Rice Reservoir
USGS Topo · 1:24,000
1954 · Fort Benton
USGS Topo · 1:24,000
1956 · Highwood
USGS Topo · 1:62,500
1957 · Great Falls
USGS Topo · 1:250,000