
The confluence of the Allegheny River and Monongahela River forms the industrial heart of this landscape at the dawn of the twentieth century. Dense urban development and extensive rail yards characterize the Pittsburgh city center and its neighboring boroughs like Millvale and Homestead. The map reveals the intricate transportation network of the era, with lines like the Pennsylvania RR and the Baltimore and Ohio RR following the narrow river valleys to serve massive manufacturing centers. Away from the riverbanks, the terrain rises into steep hills and hollows such as Possum Hollow, where the residential and social geography of the region is marked by sprawling green spaces including Allegheny Cemetery, Highland Park, and Schenley Park. This survey captures the transition from heavy river-front industry to the emerging commuter suburbs like Wilkinsburg and Swissvale.
134 named features on this map. Tap any name to fly to it.
Don’t see what you’re looking for? This feature index may not catch every label — zoom into the map to look around manually.
10 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 · Mc Keesport
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