From Lansford, PA 902 heads southeast passes through Summit Hill before crossing two mountains and entering the Mahoning Valley.

PA 902 begins at an intersection with US 209 in the borough of Lansford in Carbon County, heading south along two-lane undivided Spring Garden Street past homes.

The route turns east into forests, entering the borough of Summit Hill as North Street.

PA 902 turns east onto Laurel Street and winds southeast across forested Pisgah Mountain.

The road turns south before it bends back to the southeast and traverses Mauch Chunk Mountain.