Rocky Lake and the drainage of O'Hanlon Coulee anchor this high plains landscape in Chouteau County. The 2020 topography reveals a sparsely settled region defined by the Public Land Survey System, with township and range lines like t24n r10e carving the terrain into a distinct grid. Water sources are critical in this environment, evidenced by isolated features like Barrel Spring nestled among the contours.
14 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.
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
1953 · Loma East
USGS Topo · 1:24,000
1953 · O'Hanlon Coulee
USGS Topo · 1:24,000
1953 · Loma West
USGS Topo · 1:24,000
1953 · Stranahan
USGS Topo · 1:24,000
1954 · Great Falls
USGS Topo · 1:250,000
1957 · Great Falls
USGS Topo · 1:250,000