(Mader #2, 40', 1999, 38-45-K) across Hollow Run in the Nettle Creek Wildlife Sanctuary SW of Bartonsville, Hamilton Township, Monroe County, PA. Rimrock Rd. S. (curves SW) 0.7 miles from jct with PA611 in Bartonsville, SW (right) on Running Valley Rd. 0.7 miles to the bridge on the S. side of the road at 8077. (N40 59.376 W75 17.750) Photos by June Schmidt 6-22-06.