
Mining operations and high-country waterways define this portion of the Helena National Forest in late 1960s Montana. The landscape is marked by numerous active and historical prospects, including the Silver Bell Mine, the Columbia Mine, and the Last Chance Mine, illustrating the persistent search for mineral wealth in the mountains of Lewis and Clark County. Drainage systems such as the Blackfoot River and its tributaries, including Landers Fork and Hogum Creek, dictate the movement through these canyons.
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2 editions found
1889 · Helena
USGS Topo · 1:250,000
1893 · Helena
USGS Topo · 1:250,000
1899 · Helena
USGS Topo · 1:250,000
1903 · Coopers Lake
USGS Topo · 1:125,000
1903 · Helena
USGS Topo · 1:250,000
1943 · Hogan
USGS Topo · 1:125,000
1947 · Butte
USGS Topo · 1:250,000
1955 · Choteau
USGS Topo · 1:250,000
1957 · Choteau
USGS Topo · 1:250,000
1958 · Butte
USGS Topo · 1:250,000