Pennsylvania Route 177 (PA 177) is a 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).