
Wild Horse Reservoir anchors the southern reaches of this landscape in Phillips County, serving as a primary water source in a region defined by its complex drainage network. The terrain is deeply inscribed by numerous seasonal waterways, including Black Coulee in the northeast and a series of westward-flowing channels such as Threemile Coulee, Fourmile Coulee, and West Alkali Creek. These coulees illustrate the erosion patterns characteristic of the Montana plains, where water has carved distinct paths through the high prairie.
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This is the sole edition of this map. No revisions or reprints were ever made.
1953 · Havre
USGS Topo · 1:250,000
1957 · Havre
USGS Topo · 1:250,000
1958 · Havre
USGS Topo · 1:250,000
1964 · Coburg SE
USGS Topo · 1:24,000
1964 · Cow Creek
USGS Topo · 1:24,000
1965 · Wagner
USGS Topo · 1:24,000
1965 · West Alkali Reservoir
USGS Topo · 1:24,000
1965 · Phillips
USGS Topo · 1:24,000
1965 · Seymour Reservoir
USGS Topo · 1:24,000
1965 · Wild Horse Reservoir
USGS Topo · 1:24,000