
The Ohio River corridor south of Freedom serves as a dense industrial and transit hub in this mid-century topographic record. The Pennsylvania and Pittsburgh & Lake Erie railroads flank the river, supporting the developed riverfronts of Aliquippa, Baden, and Conway, where the Conway-Pittsburgh Landing Field is situated. This lowland activity contrasts sharply with the interior hills of Economy and New Sewickley, where the landscape is defined by rural institutions like Big Knob Grange and Economy Grange.
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7 editions found
1901 · Beaver
USGS Topo · 1:62,500
1902 · New Castle
USGS Topo · 1:62,500
1904 · Newcastle
USGS Topo · 1:62,500
1904 · Beaver
USGS Topo · 1:62,500
1906 · Sewickley
USGS Topo · 1:62,500
1908 · Sewickley
USGS Topo · 1:62,500
1908 · Zelienople
USGS Topo · 1:62,500
1910 · Zelienople
USGS Topo · 1:62,500
1951 · Canton
USGS Topo · 1:250,000
1953 · Canton
USGS Topo · 1:250,000