40.485497, -75.069106 (from googlemaps)
Undetermined. Name may be on reverse side.
Badly rusted. Appears to now be on private property although it is still very near the bridge over Tinicum Creek. Original location was likely nearby. Note this is a "single-sided" stream name marker, found in several SE Pennsylvania counties but atypical. Most stream markers across the Commonwealth are double-sided.
March 2020 view taken from Googlemaps
River Road (PA Rt. 32) North of Lumberville