Slippery Rock and its surrounding townships occupy a landscape deeply defined by the winding course of Slippery Rock Creek and Wolf Creek. This 2016 survey illustrates the modern layout of the Slippery Rock University campus alongside a series of much older milling sites that once powered the local economy, such as Courtneys Mills, Currys Mills, and Doughertys Mills. The geography here preserves rare glacial remnants, most notably the W Liberty Esker and the Kettle Hole south of West Liberty. These geological features sit near historical burial grounds like North Liberty Cem, providing a direct link between the natural terrain and the settlement patterns of early Butler County and Mercer County families. Small hamlets like North Liberty, Forestville, and Keisters remain connected by a network of rural routes, including Kelly Rd which crosses the creek at Kelly Bridge.
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This is the sole edition of this map. No revisions or reprints were ever made.
1908 · Zelienople
USGS Topo · 1:62,500
1909 · Butler
USGS Topo · 1:62,500
1910 · Zelienople
USGS Topo · 1:62,500
1910 · Hilliards
USGS Topo · 1:62,500
1911 · Butler
USGS Topo · 1:62,500
1912 · Hilliards
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
1944 · Hilliards
USGS Topo · 1:62,500