
The silver and lead mining operations of the Hog Heaven Range define the central landscape of this 1964 survey. In the hills above Sullivan Creek, several significant industrial sites are documented, including the Flathead Mine, West Flathead Mine, and the Mary Ann Mine. This concentrated mining activity, including the Battle Butte Mine and Martin Mine further south, represents a key period in the mineral development of Flathead County.
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1920 · Flathead Lake
USGS Topo · 1:125,000
1943 · Kalispell
USGS Topo · 1:125,000
1956 · Wallace
USGS Topo · 1:250,000
1957 · Kalispell
USGS Topo · 1:250,000
1960 · Kalispell
USGS Topo · 1:250,000
1960 · Wallace
USGS Topo · 1:250,000
1961 · Kalispell
USGS Topo · 1:250,000
1962 · Kila
USGS Topo · 1:24,000
1964 · Irvine Lookout Tower
USGS Topo · 1:24,000
1964 · Lake Mary Ronan
USGS Topo · 1:24,000