
Jefferson City and the small settlement of Corbin are situated in a landscape defined by its mining heritage and rugged terrain within the Helena National Forest. By the mid-1980s, the industrial footprint of the region is evidenced by numerous Mine Shafts and prospects dotting the slopes of peaks like Valparaiso Mountain and Gregory Mountain. An Abandoned R. R. follows the path of Prickly Pear Creek, tracing the former transportation corridor that once served the local extraction economy. The map reveals a complex network of 4WD trails and gulches, including Clancy Creek and Lump Gulch, which carved through the high country. For genealogists and local historians, the inclusion of the Cem near Jefferson City and distinctive landmarks like Mc Cauley Flats and Windy Butte provides a precise look at the area's rural character during the late 20th century.
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This is the sole edition of this map. No revisions or reprints were ever made.
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