
Deerlodge National Forest defines the topography of this Montana landscape, where high-altitude geography meets the industrial infrastructure of the early 1960s. The Northern Pacific railroad cuts a prominent path through the terrain, requiring significant engineering feats like the Big Pipestone Viaduct and Spire Rock Viaduct to traverse the mountain gaps.
44 named features on this map. Tap any name to fly to it.
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2 editions found
1889 · Helena
USGS Topo · 1:250,000
1893 · Helena
USGS Topo · 1:250,000
1893 · Dillon
USGS Topo · 1:250,000
1899 · Boulder
USGS Topo · 1:125,000
1899 · Helena
USGS Topo · 1:250,000
1903 · Helena
USGS Topo · 1:250,000
1947 · Butte
USGS Topo · 1:250,000
1954 · Elk Park
USGS Topo · 1:62,500
1954 · Boulder
USGS Topo · 1:62,500
1955 · Dillon
USGS Topo · 1:250,000