
The Missouri River Headwaters serves as the geographic anchor of this 1992 study, where the Jefferson, Madison, and Gallatin rivers converge to form the Missouri. This region is a complex intersection of mountain ranges and valley floors, including the Gallatin Valley and the towering Bridger Range to the northeast. To the west, the Tobacco Root Mountains contain a legacy of resource extraction, evidenced by labels like the Garnet Gold Mine and Strawberry Mine.
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This is the sole edition of this map. No revisions or reprints were ever made.
1886 · Fort Logan
USGS Topo · 1:250,000
1886 · Little Belt Mts.
USGS Topo · 1:250,000
1888 · Three Forks
USGS Topo · 1:250,000
1889 · Helena
USGS Topo · 1:250,000
1891 · Livingston
USGS Topo · 1:250,000
1893 · Helena
USGS Topo · 1:250,000
1893 · Dillon
USGS Topo · 1:250,000
1893 · Livingston
USGS Topo · 1:250,000
1894 · Three Forks
USGS Topo · 1:250,000
1894 · Little Belt Mts.
USGS Topo · 1:250,000