
Missoula serves as the primary urban center in this 1981 survey, where the Burlington Northern railroad lines meet the confluence of regional highways. The landscape transitions from the developed valley at Grass Valley and De Smet into the high elevations of the Clearwater Mountains and the Williams Range. This map documents a critical trans-mountain corridor along Route 12, crossing through Lolo Pass at the border of Montana and Idaho.
47 named features on this map. Tap any name to fly to it.
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2 editions found
1901 · Hamilton
USGS Topo · 1:125,000
1903 · Bonner
USGS Topo · 1:125,000
1909 · Sapphire
USGS Topo · 1:125,000
1911 · Lolo
USGS Topo · 1:250,000
1912 · Missoula
USGS Topo · 1:125,000
1913 · Lolo
USGS Topo · 1:250,000
1918 · St Regis
USGS Topo · 1:125,000
1919 · St. Regis
USGS Topo · 1:125,000
1921 · Elbow Lake
USGS Topo · 1:125,000
1947 · Butte
USGS Topo · 1:250,000