The mountain settlement of Mammoth serves as the focal point for this Madison County landscape, where the South Boulder River flows through the high elevations of the Tobacco Root Mountains. The area's legacy of extraction is documented through the Mammoth Mine and the nearby Mammoth Tailings, reflecting the historic mineral strikes that shaped the region's early development. These industrial sites are part of a broader network of remote operations, including the Brooks Creek Mine and the Perry Canyon II Mine to the north.
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1888 · Three Forks
USGS Topo · 1:250,000
1893 · Dillon
USGS Topo · 1:250,000
1894 · Three Forks
USGS Topo · 1:250,000
1895 · Three Forks
USGS Topo · 1:250,000
1947 · Bozeman
USGS Topo · 1:250,000
1948 · Bozeman
USGS Topo · 1:250,000
1950 · Jefferson Island
USGS Topo · 1:62,500
1950 · Harrison
USGS Topo · 1:62,500
1955 · Bozeman
USGS Topo · 1:250,000
1955 · Dillon
USGS Topo · 1:250,000