(Gruver's Produce, 28', 1987, 38-09-d) across Hollow Brook NE of Pipersville, Tinicum Township, Bucks County, PA. Dark Hollow Rd. E. (curves NE) 1.1 miles from jct with PA413 in Pipersville, NW (curves N.) on Dark Hollow Rd. 0.5 miles to the bridge on the E. side of the road at 541. (3-26-06, N40° 26.47', W75° 07.42') Photos by Dan McWilliams.