
Slippery Rock Creek carves a deep valley through this Lawrence and Butler County landscape, anchored by the iconic McConnells Mill. The terrain is a complex mix of industrial extraction and burgeoning conservation, where numerous Strip Mines and a Tipple Mine operate near the expanding McConnells Mill State Park. Further east, the borough of Portersville sits as a crossroads for local travelers, while the rising waters of Lake Arthur begin to shape the eastern edge of the quadrangle.
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4 editions found
1902 · New Castle
USGS Topo · 1:62,500
1904 · Newcastle
USGS Topo · 1:62,500
1905 · Neshannock
USGS Topo · 1:62,500
1907 · Neshannock
USGS Topo · 1:62,500
1908 · Zelienople
USGS Topo · 1:62,500
1910 · Zelienople
USGS Topo · 1:62,500
1913 · Mercer
USGS Topo · 1:62,500
1939 · Mercer
USGS Topo · 1:62,500
1943 · Mercer
USGS Topo · 1:62,500
1950 · Cleveland
USGS Topo · 1:250,000