The Allegheny River meanders through this section of McKean County, anchoring the borough of Port Allegany and the smaller settlements of Turtlepoint and Twomile. The landscape is defined by its narrow valley floors and a complex network of branching hollows, such as Ostrander Hollow, Bemis Hollow, and the industrially named Tramroad Hollow, which suggest a history of timber and transport through the rugged terrain.
75 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.
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
1948 · Crosby
USGS Topo · 1:62,500
1948 · Emporium
USGS Topo · 1:62,500
1948 · Keating Summit
USGS Topo · 1:24,000
1948 · Norwich
USGS Topo · 1:24,000
1948 · Crosby
USGS Topo · 1:24,000
1950 · Norwich
USGS Topo · 1:24,000