Rocky Lake sits at the center of this Chouteau County landscape, reflecting the sparse but distinct hydrology of the Montana plains. The terrain is defined by a series of deep drainages including Smith Coulee, Rowe Coulee, and Foucher Coulee, which cut through the high ground marked by prominent elevations like Round Top and Shaws Peak. A specialized network of rural roads, such as Ohanlon Coulee Rd and Clear Lake Rd, provides access across the township and range lines, while the Missouri Breaks Loop suggests the proximity of this area to the breaks of the Missouri River. Significant landmarks like Barrel Spring offer clues to the importance of localized water sources in this expansive ranching and agricultural region during the early twenty-first century.
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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