
The confluence of the Beaver River and the Ohio River anchors this 1901 survey, revealing an industrial landscape defined by river navigation and rail transport. Steep-walled valleys host a dense cluster of river towns, from the established county seat at Beaver to the manufacturing centers of Beaver Falls, Rochester, and Monaca. Significant engineering of the era is evident at Dam No. 5 and Dam No. 6, which regulated the Ohio for heavy barge traffic.
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6 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 · Wellsville
USGS Topo · 1:62,500
1904 · Steubenville
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