
Dorner School stands as a focal point in this 1970 landscape of north-central Montana, situated near the boundary between Township 26 and 27 North. The terrain is defined by the intricate drainage patterns of East Dubout Coulee and Chimney Rock Coulee, which carve through the high plains of Chouteau County. This mapping, produced for the development of the Missouri River Basin, reveals a sparsely settled rural landscape where land use is concentrated around these seasonal watercourses.
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This is the sole edition of this map. No revisions or reprints were ever made.
1886 · Great Falls
USGS Topo · 1:250,000
1890 · Fort Benton
USGS Topo · 1:250,000
1892 · Fort Benton
USGS Topo · 1:250,000
1897 · Fort Benton
USGS Topo · 1:250,000
1950 · Dent Bridge
USGS Topo · 1:62,500
1954 · Great Falls
USGS Topo · 1:250,000
1954 · Shelby
USGS Topo · 1:250,000
1957 · Great Falls
USGS Topo · 1:250,000
1958 · Shelby
USGS Topo · 1:250,000
1970 · Penzer School
USGS Topo · 1:24,000