
Jefferson City and the nearby settlement of Corbin are the primary hubs in this mountainous reach of the Helena National Forest during the late 20th century. The landscape is heavily marked by its mineral history, with numerous extraction sites such as the Free Coinage Mine to the north and the Gregory Mine to the south. These operations, along with numerous unnamed Mine Shafts and Tailings piles along Clancy Creek, define the industrial character of the gulches and peaks.
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1886 · Fort Logan
USGS Topo · 1:250,000
1889 · Helena
USGS Topo · 1:250,000
1893 · Helena
USGS Topo · 1:250,000
1899 · Boulder
USGS Topo · 1:125,000
1899 · Helena
USGS Topo · 1:62,500
1899 · Helena
USGS Topo · 1:250,000
1903 · Helena
USGS Topo · 1:250,000
1947 · Butte
USGS Topo · 1:250,000
1948 · White Sulphur Springs
USGS Topo · 1:250,000
1950 · Jefferson City
USGS Topo · 1:62,500