Pennsylvania Route 177

Pennsylvania Route 177
Route information
Maintained by PennDOT
Length	9.569 mi[1] (15.400 km)
Existed	1961[2]–present
Major junctions
South end	PA 74 in Rossville
Major intersections	PA 382 in Lewisberry PA 392 in Newberry Township I-83 in Fairview Township
North end	PA 262 in Fairview Township
Location
Country	United States
State	Pennsylvania
Counties	York
Highway system
Pennsylvania State Route System Interstate US State Scenic Legislative
← PA 176 → I-178

Pennsylvania Route 177 (PA 177) is a 9.6-mile-long (15.4 km) state highway located in York County, Pennsylvania. The southern terminus is an intersection with PA 74 and Township Route 4026 (Old York Road) in Rossville. From this intersection, PA 177 bisects the southwestern portion of Pinchot Lake and continues along the northwestern side of Gifford Pinchot State Park. Just south of Lewisberry, PA 177 intersects PA 382 and marks the northern terminus of PA 392 to the north of town. The northern terminus is at PA 262 between Yocumtown and Frogtown, just after an interchange with Interstate 83 (I-83).

The northernmost portion of what would become PA 177 along Old York Road became part of the Susquehanna Trail in 1920, PA 4 in 1924, and U.S. Route 111 (US 111) in 1926. PA 4 was removed from the road in 1928 and US 111 was realigned off it in the 1950s. The section between PA 74 and present-day PA 392 was paved in the 1930s while the section north of there was paved in the 1940s. PA 177 was designated to run between PA 74 and PA 262 in 1961. PA 177 previously followed Old York Road north to intersect PA 262; this section was removed in 2011 following a realignment of the intersection with PA 262.

A Gravity Hill exists on Pleasantview Road at its intersection with Pennsylvania Route 177.