
Little Mahoning Creek Lake and the winding waters of Cowanshannock Creek define this rural landscape on the border of Armstrong and Indiana counties. The area is characterized by a dense network of natural gas infrastructure, with numerous Gas Wells and pipelines scattered across the townships of West Mahoning, South Mahoning, and Wayne. In the south, the industrial legacy of the region is evident near Sagamore, where the Old Railroad Grade and Sagamore Reservoirs sit near active extraction sites like the Strip Mine and Tipple Mine on Sugar Camp Run. Local heritage is anchored by several rural congregations and their burial grounds, including SS Peter and Paul Cem and Sacred Heart Cem near Beyer. The map also captures smaller communities such as Plumville, Smicksburg, and Atwood, reflecting a settlement pattern tied to the creek valleys and the early extractive economy.
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1901 · Rural Valley
USGS Topo · 1:62,500
1902 · Indiana
USGS Topo · 1:62,500
1902 · Elders Ridge
USGS Topo · 1:62,500
1903 · Rural Valley
USGS Topo · 1:62,500
1904 · Elders Ridge
USGS Topo · 1:62,500
1909 · Smicksburg
USGS Topo · 1:62,500
1938 · Smicksburg
USGS Topo · 1:62,500
1939 · Smicksburg
USGS Topo · 1:62,500
1953 · Pittsburgh
USGS Topo · 1:250,000
1954 · Pittsburgh
USGS Topo · 1:250,000