
The Monongahela River and Allegheny River valley systems define this industrial heartland, showing the intense concentration of steel-era settlements and infrastructure at the start of the 20th century. Major municipal green spaces like Schenley Park and Highland Park offer a striking contrast to the dense rail networks of the Pennsylvania RR and the Baltimore and Ohio RR that hug the riverbanks. The map documents the growth of residential and industrial hubs from Wilkinsburg and Homestead to the vital junctions at Braddock and Turtle Creek.
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2 editions found
1901 · Amity
USGS Topo · 1:62,500
1902 · Brownsville
USGS Topo · 1:62,500
1902 · Connellsville
USGS Topo · 1:62,500
1904 · Amity
USGS Topo · 1:62,500
1904 · Carnegie
USGS Topo · 1:62,500
1904 · Greensburg
USGS Topo · 1:62,500
1906 · Brownsville
USGS Topo · 1:62,500
1906 · Carnegie
USGS Topo · 1:62,500
1906 · Greensburg
USGS Topo · 1:62,500
1906 · Sewickley
USGS Topo · 1:62,500