
The Clarion River and Elk Creek define this industrial corridor of Pennsylvania's coal and timber country just before the mid-century. Centered on the borough of Ridgway and the city of St. Marys, the landscape is a dense network of extraction and transport. Multiple rail lines, including the Pennsylvania Railroad and the Pittsburg Shawmut and Northern, thread through the valleys to serve active operations like Dagus Mines, Kyler Mine, and Toby Mine.
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3 editions found
1922 · Du Bois
USGS Topo · 1:62,500
1924 · Du Bois
USGS Topo · 1:62,500
1929 · Clearfield
USGS Topo · 1:48,000
1929 · Penfield
USGS Topo · 1:62,500
1932 · Clearfield
USGS Topo · 1:62,500
1932 · Penfield
USGS Topo · 1:62,500
1934 · Kane
USGS Topo · 1:48,000
1935 · Mt. Jewett
USGS Topo · 1:48,000
1939 · Kane
USGS Topo · 1:62,500
1940 · Hallton
USGS Topo · 1:48,000