Derrick City and the surrounding Pennsylvania oil country settlements appear here in a landscape deeply defined by narrow valleys and steep ridges. The map captures a complex network of hamlets including Gilmore, Red Rock, and Bells Camp, many of which developed alongside the region's historic petroleum industry. The terrain is a labyrinth of named hollows, such as Buchanan Hollow, Garlock Hollow, and Pratt Hollow, which funnel local drainage toward Foster Brook and Kendall Cr.
72 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
1900 · Salamanca
USGS Topo · 1:62,500
1924 · Bradford
USGS Topo · 1:62,500
1926 · Bradford
USGS Topo · 1:62,500
1933 · Smethport
USGS Topo · 1:62,500
1937 · Smethport
USGS Topo · 1:62,500
1938 · Salamanca
USGS Topo · 1:62,500
1938 · Olean
USGS Topo · 1:62,500
1941 · Bradford
USGS Topo · 1:62,500
1943 · Olean
USGS Topo · 1:62,500