
The Marias River carves a deep, winding path through the heart of this North Central Montana landscape, revealing the intricate drainage patterns of the northern Great Plains. This 2024 survey documents the rugged breaks and coulees that feed the river system, including Lone Tree Coulee and the uniquely named Slide Out Coulee. The terrain is characterized by steep elevation changes between the high prairie benches and the river valley floor.
10 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 · Loma West
USGS Topo · 1:24,000
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
1964 · Fort Benton NW
USGS Topo · 1:24,000
1964 · Day School SW
USGS Topo · 1:24,000