
The oil and gas fields of northern Pennsylvania dominate the high plateau country shown here in 1980, where the heavy industry of Bradford meets the dense woodlands of the Allegheny National Forest. This era shows a complex infrastructure supporting resource extraction, with extensive oil and gas fields blanketing the landscape between deep creek valleys. The regional transport network is anchored by the Baltimore and Ohio Railroad and Conrail, which wind through steep terrain to serve industrial settlements like Smethport and Mt Jewett.
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This is the sole edition of this map. No revisions or reprints were ever made.
1898 · Olean
USGS Topo · 1:62,500
1900 · Salamanca
USGS Topo · 1:62,500
1905 · Jamestown
USGS Topo · 1:62,500
1906 · Warren
USGS Topo · 1:62,500
1907 · Warren
USGS Topo · 1:62,500
1908 · Warren
USGS Topo · 1:62,500
1918 · Loleta
USGS Topo · 1:62,500
1922 · Randolph
USGS Topo · 1:62,500
1923 · Randolph
USGS Topo · 1:62,500
1924 · Bradford
USGS Topo · 1:62,500