The winding course of the First Fork Sinnemahoning Cr serves as the central artery for this region of Potter County, where the small settlements of Wharton and Costello are situated along the valley floor. The landscape is defined by a dense network of tributary runs and hollows, such as Fish Basket Hollow and Bentley Hollow, which branch out from the main waterway. The names preserved on this 2013 survey often reflect historical land use and early infrastructure, including Railroad Hollow, Schoolhouse Hollow, and Gas Well Hollow. These labels suggest a legacy of timbering, education, and early resource extraction that shaped these narrow valleys. High ridges separated by deep drainages like Bailey Run and Little Portage Cr create a pattern of isolated settlements connected by a limited network of mountain roads.
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This is the sole edition of this map. No revisions or reprints were ever made.
1945 · Driftwood
USGS Topo · 1:48,000
1945 · First Fork
USGS Topo · 1:24,000
1945 · Cameron
USGS Topo · 1:24,000
1946 · Renovo West
USGS Topo · 1:62,500
1946 · Hammersley Fork
USGS Topo · 1:24,000
1947 · Cameron
USGS Topo · 1:24,000
1947 · First Fork
USGS Topo · 1:24,000
1947 · Conrad
USGS Topo · 1:62,500
1947 · Conrad
USGS Topo · 1:24,000
1947 · Ayers Hill
USGS Topo · 1:24,000