
The Youghiogheny River winds along the southwestern edge of this Westmoreland County landscape, where the local terrain is defined by the deep valleys of Sewickley Creek and its many tributaries. Settlement patterns reflect a mix of established borough centers like Smithton and smaller communities such as Hutchinson, Wyano, and Yukon. The area is notably dense with early burial sites and rural congregations, including the Sewickley Presbyterian Church and the Saint Paul Seanor Cem.
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1902 · Brownsville
USGS Topo · 1:62,500
1902 · Connellsville
USGS Topo · 1:62,500
1904 · Mc Keesport
USGS Topo · 1:62,500
1904 · Greensburg
USGS Topo · 1:62,500
1906 · Brownsville
USGS Topo · 1:62,500
1906 · Greensburg
USGS Topo · 1:62,500
1907 · Pittsburg
USGS Topo · 1:62,500
1931 · Brownsville
USGS Topo · 1:62,500
1931 · Connellsville
USGS Topo · 1:62,500
1933 · Brownsville
USGS Topo · 1:62,500