
The Allegheny River and Clarion River dominate this turn-of-the-century landscape, carving deep, winding valleys through the plateau. This era shows a region transitioning between water-based industry and rail transport, with the Baltimore and Ohio and Pennsylvania railroads following the riverbanks to serve coal and iron operations. Industrial history is evident at Canoe Furnace and Sarah Furnace, while active extraction is documented at the Eagle Mine and Blue Goose Mine.
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5 editions found
1900 · Kittanning
USGS Topo · 1:62,500
1901 · Rural Valley
USGS Topo · 1:62,500
1902 · Kittanning
USGS Topo · 1:62,500
1903 · Rural Valley
USGS Topo · 1:62,500
1906 · Clarion
USGS Topo · 1:62,500
1907 · Clarion
USGS Topo · 1:62,500
1907 · Foxburg
USGS Topo · 1:62,500
1908 · Foxburg
USGS Topo · 1:62,500
1909 · Franklin
USGS Topo · 1:62,500
1909 · Butler
USGS Topo · 1:62,500