RR bridge (Shamokin Creek) across Shamokin Creek E. of Sunbury, Upper Augusta Township, Northumberland County, PA. PA61 (Market St., becomes State St.) E. 2.0 miles from jct with PA147 (Front St.) in Sunbury, N. (curves NE) on Blackmill Rd. 0.75 miles, N. on Blackmill Rd. 0.1 miles to the bridge to the west 150’. (5-23-06, N40 51.96 W76 45.10) Photo by Jack Schmidt.