Region
- Pennsylvania 71 results
- Berks County 6 results
- Chester County 6 results
- Berks County (Pa.) 4 results
- Lancaster County 4 results
- Pennsylvanie 4 results
- Philadelphia 4 results
- United States 4 results
- Chester County (Pa.) 3 results
- Montgomery County 3 results
- Valley Forge 3 results
- Valley Forge (Pa.) 3 results
- Cornwall 2 results
- Elkton (Md.) 2 results
- Maryland 2 results
- Perkiomen River and Valley 2 results
- Perkiomen River and Valley (Pa.) 2 results
- Robesonia 2 results
- Scranton (Pa.) 2 results
- Berks Co 1 results
- Birdsborough (Berks County, Pa.) 1 results
- Blair County 1 results
- Blair County (Pa.) 1 results
- Chesapeake and Delaware Canal (Del. and Md.) 1 results
- Chester (Comté) 1 results
- Cornwall (Pa.) 1 results
- Coventry 1 results
- Coventry (Pa.) 1 results
- Elk Forge 1 results
- Elkton 1 results
- États-Unis 1 results
- Hopewell Furnace National Historic Site (Pa.) 1 results
- Hopewell Village National Historic Site 1 results
- Johnstown 1 results
- Johnstown (Cambria County, Pa.) 1 results
- Lancaster County (Pa.) 1 results
- Montgomery County (Pa.) 1 results
- Pennsy 1 results
- Philad 1 results
- Philadelphi 1 results
- Pine Grove Furnace (Pa.) 1 results
- Pine Grove Iron Works 1 results
- Pitt 1 results
- Pittsburg 1 results
- Pittsburgh 1 results
- Reading 1 results
- Reading Furnace Farm (Pa.) 1 results
- Robesonia (Pa.) 1 results
- Scranton 1 results
- South Bethlehem 1 results