Johnson Mtn and Joes Mtn dominate this Lewis and Clark County landscape, where the high terrain of the Rocky Mountain Front gives way to the drainage systems of the upper Missouri watershed. The hydrology of the region is defined by the Dearborn River and its prominent Middle Fork, which carve through the foothills alongside smaller seasonal drainages like Hardgrove Cr and Big Skunk Cr. Evidence of early 21st-century infrastructure is visible in the network of local routes, including Augusta Rd and McDonough Rd, while the presence of the Gillette Ditch indicates the ongoing importance of water management for local ranching or agricultural operations. From the elevations of Sunrise Hill to the depths of Spring Gulch, the map captures a sparsely populated territory where the land's utility is primarily dictated by its sharp relief and water access.
28 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.
1943 · Hogan
USGS Topo · 1:125,000
1955 · Choteau
USGS Topo · 1:250,000
1957 · Choteau
USGS Topo · 1:250,000
1958 · Choteau
USGS Topo · 1:250,000
1961 · Roberts Mountain
USGS Topo · 1:24,000
1961 · Comb Rock
USGS Topo · 1:24,000
1962 · Choteau
USGS Topo · 1:250,000
1962 · Bowmans Corners
USGS Topo · 1:24,000
1962 · Johnson Mountain
USGS Topo · 1:24,000
1963 · Rogers Pass
USGS Topo · 1:24,000