
Hecla Mines and several other significant historic workings dominate the northern high country of this Beaverhead National Forest survey. The landscape is a dense concentration of early extraction sites, including the Franklin Mine, Trapper Mine, and Cleve Mine, where numerous adits, prospects, and mine shafts mark the terrain around Lion Mountain and Soppington. This area was clearly a focal point for late 20th-century geological interest, with activity clustered near Cleve Park and the headwaters of Trapper Creek.
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1893 · Dillon
USGS Topo · 1:250,000
1952 · Twin Adams Mountain
USGS Topo · 1:24,000
1952 · Torrey Mountain
USGS Topo · 1:24,000
1955 · Dillon
USGS Topo · 1:250,000
1957 · Dillon
USGS Topo · 1:250,000
1958 · Dillon
USGS Topo · 1:250,000
1958 · Vipond Park
USGS Topo · 1:62,500
1959 · Polaris
USGS Topo · 1:62,500
1962 · Dillon
USGS Topo · 1:250,000
1965 · Dillon
USGS Topo · 1:250,000