
Chicago Milwaukee St Paul and Pacific railroad tracks cross the southern reaches of this Chouteau County landscape, illustrating the vital role of heavy rail in connecting Montana's agricultural interior during the early 1970s. The terrain is defined by the drainage patterns of Mud Spring Coulee, which winds through the central portion of the map. This area, surveyed by photogrammetric methods from 1971 aerial photographs, shows a sparsely populated region primarily characterized by its natural water features like the simple Spring found nestled in the northern coulee system. The map serves as a precise record of the land surface before further modern developments, highlighting the stark relief and the isolation of the northern Great Plains ranching country.
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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 · Rocky Lake
USGS Topo · 1:24,000
1954 · Great Falls
USGS Topo · 1:250,000
1957 · Great Falls
USGS Topo · 1:250,000
1972 · Eagle Buttes SW
USGS Topo · 1:24,000
1972 · Square Butte
USGS Topo · 1:24,000
1972 · Stranahan SE
USGS Topo · 1:24,000
1972 · Montague
USGS Topo · 1:24,000