
The Clark Fork river valley serves as the primary corridor for transportation and settlement in this late 20th-century survey of the boundary between Missoula and Granite counties. The small communities of Bonita and Ravenna are situated along the river, which is paralleled by major infrastructure including a pipeline and the Beavertail Hill Tunnels. Much of the southern and central terrain is dominated by the Lolo National Forest, characterized by high-elevation landmarks such as Burnt Mountain and Strawberry Mountain.
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This is the sole edition of this map. No revisions or reprints were ever made.
1903 · Bonner
USGS Topo · 1:125,000
1919 · Drummond
USGS Topo · 1:125,000
1921 · Drummond
USGS Topo · 1:125,000
1947 · Butte
USGS Topo · 1:250,000
1958 · Butte
USGS Topo · 1:250,000
1959 · Bearmouth
USGS Topo · 1:62,500
1959 · Ravenna
USGS Topo · 1:62,500
1960 · Butte
USGS Topo · 1:250,000
1962 · Butte
USGS Topo · 1:250,000
1965 · Union Peak
USGS Topo · 1:24,000