(Erwinna, 56', 1871, 38-09-04) across Roaring Rocks Creek NW of Erwinna, Tinicum Township, Bucks County, PA. Geigel Hill Rd. NW 0.2 miles from jct with Headquarters Rd. in Erwinna to the bridge. (6-24-06, N40° 30.15', W75° 04.48') Top 3 photos by Jack Schmidt.

Bottom photo by Mike MacCarter 04-2004.