Rockhounding in Pennsylvania – What Rocks You Can Find and Where Posted by Celeste | Oct 12, 2020 | Geology of States Explore Rockhounding in Pennsylvania No Records FoundSorry, no records were found. Please adjust your search criteria and try again. Google Map Not LoadedSorry, unable to load Google Maps API. Loading categories... Search No listings were found matching your selection. Something missing? Why not add a listing?. Author: Celeste Rocks!