(A Dock, 25', 1972, 38-23-d) across Darby Creek SE of Ridley Park, Ridley Township, Delaware County, PA. Swarthmore Av. SE 0.5 miles from jct with US13 in Ridley Park to the bridge at Morrow’s Marina (Ridley Township Marina). (4-1-06, N39° 52.22', W75° 18.84') Photos by Dan McWilliams.