
The Ohio River corridor serves as the industrial and transportation backbone of this region during the early twentieth century, as documented by the work of geographer H.M.Wilson. Dense rail infrastructure lines the riverbanks, including the Pennsylvania System and the Pittsburgh and Lake Erie RR, supporting bustling riverfront towns like Ambridge, Freedom, and Sewickley. This area transitions from the heavy industrial activity of Parks Quarries and the riverside landings to the more rural, rolling uplands of Marshall and Franklin townships.
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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 · Mc Keesport
USGS Topo · 1:62,500
1904 · Beaver
USGS Topo · 1:62,500
1904 · Carnegie
USGS Topo · 1:62,500
1904 · Burgettstown
USGS Topo · 1:62,500
1906 · Burgettstown
USGS Topo · 1:62,500
1906 · Carnegie
USGS Topo · 1:62,500
1906 · Sewickley
USGS Topo · 1:62,500