
The Allegheny River valley forms the heart of this landscape, where the Portville and Weston Mills settlements cluster along the riverbanks. The terrain is defined by deep hollows like Narvoo Hollow and Gleason Hollow, which cut through high ridges such as Typnahda Mountain and Portville Ridge. This contemporary survey shows a rural environment where legacy family and community spaces are preserved, including the Chestnut Hill Cem and Portville Cem.
92 named features on this map. Tap any name to fly to it.
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This is the sole edition of this map. No revisions or reprints were ever made.
1898 · Olean
USGS Topo · 1:62,500
1925 · Belmont
USGS Topo · 1:62,500
1933 · Smethport
USGS Topo · 1:62,500
1934 · Coudersport
USGS Topo · 1:48,000
1937 · Smethport
USGS Topo · 1:62,500
1938 · Coudersport
USGS Topo · 1:62,500
1938 · Olean
USGS Topo · 1:62,500
1939 · Belmont
USGS Topo · 1:62,500
1943 · Olean
USGS Topo · 1:62,500
1957 · Warren
USGS Topo · 1:250,000