
The confluence of the Allegheny River and Monongahela River forms the Ohio River at Pittsburgh, the industrial heart of this regional study. Revised through the mid-1960s, this map documents the dense urban core and its expansion along the river valleys into New Kensington, McKeesport, and Wilkinsburg. To the east, the terrain transforms as the Allegheny Mountains rise, showing the structural dominance of Laurel Hill and Chestnut Ridge.
73 named features on this map. Tap any name to fly to it.
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5 editions found
1900 · Uniontown
USGS Topo · 1:62,500
1900 · Mercersburg
USGS Topo · 1:62,500
1900 · Masontown
USGS Topo · 1:62,500
1900 · Latrobe
USGS Topo · 1:62,500
1900 · Everett
USGS Topo · 1:62,500
1900 · Kittanning
USGS Topo · 1:62,500
1901 · Amity
USGS Topo · 1:62,500
1901 · Rural Valley
USGS Topo · 1:62,500
1901 · Waynesburg
USGS Topo · 1:62,500
1901 · Huntingdon
USGS Topo · 1:62,500