
The Allegheny National Forest dominates the heart of this mid-century Pennsylvania study, reflecting a landscape defined by timber, oil, and heavy industry. At its center, the newly formed Allegheny River Reservoir appears alongside established industrial hubs like Oil City and Bradford. The rail network remains a vital skeleton across the region, featuring the Pennsylvania RR, Baltimore & Ohio RR, and the Erie RR navigating the drainages of the Clarion River and Tionesta Creek.
78 named features on this map. Tap any name to fly to it.
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4 editions found
1898 · Olean
USGS Topo · 1:62,500
1899 · Erie
USGS Topo · 1:62,500
1900 · Erie
USGS Topo · 1:62,500
1900 · Salamanca
USGS Topo · 1:62,500
1900 · Kittanning
USGS Topo · 1:62,500
1901 · Rural Valley
USGS Topo · 1:62,500
1902 · Kittanning
USGS Topo · 1:62,500
1903 · Curwensville
USGS Topo · 1:62,500
1903 · Rural Valley
USGS Topo · 1:62,500
1903 · Houtzdale
USGS Topo · 1:62,500