The Stonycreek River winds through this section of Somerset County, where the valley topography defines a string of tight-knit settlements. From the industrial corridors of Hooversville and Hollsopple to the smaller hamlets of Seanor and Blough, the landscape reflects a heritage of river-oriented development and mountain transit. The massive Quemahoning Reservoir dominates the western half of the sheet, its irregular shoreline reaching into the valleys formed by Twomile Run and Higgins Run.
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1904 · Johnstown
USGS Topo · 1:62,500
1907 · Johnstown
USGS Topo · 1:62,500
1913 · Somerset
USGS Topo · 1:62,500
1914 · Windber
USGS Topo · 1:62,500
1915 · Somerset
USGS Topo · 1:62,500
1916 · Windber
USGS Topo · 1:62,500
1920 · New Florence
USGS Topo · 1:62,500
1921 · New Florence
USGS Topo · 1:48,000
1922 · New Florence
USGS Topo · 1:62,500
1944 · Somerset
USGS Topo · 1:62,500