
Industrial activity and community expansion define this early 1950s landscape north of Pittsburgh. Along the Baltimore and Ohio rail corridor, the towns of Glenshaw and Allison Park serve as central hubs for the surrounding hills of Hampton and Shaler townships. The economy of the era is anchored by large-scale extraction, evidenced by the Wildwood Mine and the Dorseyville Portal Harmar Mine, while the newly constructed Pennsylvania Turnpike cuts across the northern reaches, complete with the Butler Valley Interchange Toll House.
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This is the sole edition of this map. No revisions or reprints were ever made.
1904 · Mc Keesport
USGS Topo · 1:62,500
1904 · Carnegie
USGS Topo · 1:62,500
1906 · Carnegie
USGS Topo · 1:62,500
1906 · Sewickley
USGS Topo · 1:62,500
1907 · Pittsburg
USGS Topo · 1:62,500
1908 · Sewickley
USGS Topo · 1:62,500
1908 · Carnegie
USGS Topo · 1:62,500
1908 · New Kensington
USGS Topo · 1:62,500
1910 · New Kensington
USGS Topo · 1:62,500
1948 · Pittsburgh West
USGS Topo · 1:24,000