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Pennsylvania Route 666

PA Route 666 marker

PA Route 666
Route information
Maintained by PennDOT
Length: 33.557 mi (54.005 km)
Existed: 1928 – present
Major junctions
West end: US 62 in Hickory Township
East end: US 6 in Sheffield Township
Location
Counties: Forest, Warren
Highway system
PA 664 PA 669

PA Route 666 marker

Pennsylvania Route 666 (PA 666) is an east–west state route located in northwest Pennsylvania. The western terminus of the route is at U.S. Route 62 (US 62) in the Hickory Township municipality of East Hickory, and its eastern terminus is at US 6 in the hamlet of Sheffield in the township of the same name. It cuts through most of Allegheny National Forest, and is therefore sparsely populated, with the largest settlement along the road being Endeavor. Its official name is the David Zeisberger Memorial Highway.

The route was assigned in the 1928 numbering of State Routes in Pennsylvania. The highway originally ended in Nebraska until being extended southward along other streets. The route was realigned in 1946 onto its present routing. The highway has remained the same since.

Pennsylvania Route 666 begins at an intersection with US 62 along the banks of the Allegheny River in East Hickory. The route progresses eastward, intersecting with East Hickory Road, a dead end street that is part of old US 62. With trees and some homes surrounding the highway, PA 666 continues out of East Hickory and into Hickory Township. The highway heads into Queen, intersecting with two dead-end streets before turning to the southeast. The route quickly leaves Queen, entering a heavily forested area. The trees around the highway are very dense and surround the highway for several miles. The southeastern motion that PA 666 was following becomes a steady east, with the highway making several changes in its direction. There is an intersection with a local road, Yellow Hammer Road, which has access to a small amount of civilization. The road however, is a loop, and merges in soon after. The route continues farther through the dense forestry, intersecting with a woods road. PA 666 continues farther to the southeast, entering a break in the dense forestry.


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