PA 957 begins at an intersection with US 6 in Columbus Township, heading east-northeast on two-lane undivided Pike Road. The route runs through the residential community of Columbus before continuing east into agricultural areas with a few homes as an unnamed road. The road runs through Wilbur Crossing before continuing through rural areas and entering Freehold Township, where it passes through the community of Wells Corners. Farther east, PA 957 runs through areas of farms and woods before crossing a Western New York and Pennsylvania Railroad line and intersecting PA 958. At this point, PA 958 turns east to form a concurrency with PA 957 and the road passes more farms as it comes to the residential community of Lottsville. Here, PA 958 turns to the south and PA 957 continues northeast through more farmland and woodland with some homes.[2][3]
PA 957 east in Lottsville, approaching the junction with PA 958
The road heads into Sugar Grove Township and runs through Frodelius Corners before coming into the borough of Sugar Grove. The route becomes West Main Street and passes homes, reaching an intersection with PA 69. Here, PA 69 turns east for a concurrency with PA 957 and the road heads through the commercial downtown on Race Street, with PA 69 turning to the north. PA 957 continues past more residences before crossing back into Sugar Grove Township and running through areas of farms and woods with some homes, with the road name changing to Russell Lander Road. The route heads into Farmington Township and continues southeast through rural areas. The road heads into more open agricultural areas as it passes through the residential community of Lander before turning east and heading through Marshtown Corners. PA 957 enters Pine Grove Township and turns southeast, passing through more forested areas with some farms and homes. The route reaches its eastern terminus at an intersection with US 62.[2][3]
US 6 in Columbus Township
US 62 in Elk Township
