 About a mile () south, a , trestle carries SEPTA's Media/Elwyn Line commuter railroad line across the creek, which by now runs through a deep valley.The trestle is located in the Crum Woods, 200 acres of forest surrounding the creek that constitutes part of the campus of Swarthmore College.This tract, one of the largest patches of woodland remaining in Delaware County, is managed by the College's Scott Arboretum.