
The hills of Westmoreland and Allegheny counties in the early 1950s are defined here by a dense network of extraction and energy infrastructure. Numerous gas wells and pumping stations, such as the Dice Pumping Sta and Tonkin Pumping Sta, are scattered across the terrain, reflecting the region's industrial foundation. Extensive strip mining operations are mapped in detail, including the Plum Creek Mine (Active) and several others near Export.
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5 editions found
1904 · Mc Keesport
USGS Topo · 1:62,500
1904 · Greensburg
USGS Topo · 1:62,500
1906 · Greensburg
USGS Topo · 1:62,500
1907 · Pittsburg
USGS Topo · 1:62,500
1907 · Freeport
USGS Topo · 1:62,500
1908 · New Kensington
USGS Topo · 1:62,500
1909 · Freeport
USGS Topo · 1:62,500
1910 · New Kensington
USGS Topo · 1:62,500
1953 · Pittsburgh
USGS Topo · 1:250,000
1953 · Mc Keesport
USGS Topo · 1:24,000