
Industrial resource extraction and rural crossroads define this portrait of the Pennsylvania interior, where the borders of Armstrong, Jefferson, and Indiana Counties converge. The landscape is heavily marked by the coal and gas industries, with numerous Gas Wells and pervasive Strip Mines following the contours of the hills. Transportation is anchored by the Pittsburgh and Shawmut RR and the Baltimore and Ohio RR, which serviced the region's productive output.
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4 editions found
1901 · Rural Valley
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
1909 · Smicksburg
USGS Topo · 1:62,500
1924 · Brookville
USGS Topo · 1:62,500
1926 · Brookville
USGS Topo · 1:62,500
1938 · Smicksburg
USGS Topo · 1:62,500
1939 · Smicksburg
USGS Topo · 1:62,500
1944 · Brookville
USGS Topo · 1:62,500