| Locality | Latitude | Longitude | Distance | Bearing |
|---|
| Kratz, Upper Salford Township, Montgomery County, Pennsylvania, USA | 40° 18' 56" N | 75° 28' 17" W | 2.0km (1.2 miles) | |
| Young's Quarry, Kratz, Upper Salford Township, Montgomery County, Pennsylvania, USA | 40° 18' 59" N | 75° 28' 19" W | 2.1km (1.3 miles) | |
| Kibblehouse Quarry, Perkiomenville, Marlborough Township, Montgomery County, Pennsylvania, USA | 40° 19' 24" N | 75° 28' 11" W | 2.3km (1.4 miles) | |
| Perkiomenville, Marlborough Township, Montgomery County, Pennsylvania, USA | 40° 19' 27" N | 75° 28' 41" W | 2.9km (1.8 miles) | |
| Harleysville Materials Quarry (M&M Stone), Lower Salford Township, Montgomery County, Pennsylvania, USA | 40° 16' 36" N | 75° 24' 29" W | 5.1km (3.2 miles) | |
| Old Perkiomen Mine, Lower Frederick Township, Montgomery County, Pennsylvania, USA | 40° 15' 35" N | 75° 28' 35" W | 6.1km (3.8 miles) | |
| Naceville Materials Quarry, Sellersville, West Rockhill Township, Bucks County, Pennsylvania, USA | 40° 21' 18" N | 75° 22' 20" W | 8.1km (5.1 miles) | |
| Brendlinger Mine, Douglass Township, Montgomery County, Pennsylvania, USA | 40° 20' 21" N | 75° 34' 53" W | 11.7km (7.3 miles) | |
| Sanatoga Station, Lower Pottsgrove Township, Montgomery County, Pennsylvania, USA | 40° 14' 14" N | 75° 35' 52" W | 15.0km (9.3 miles) | |
| Boyertown Mine, Boyertown, Berks County, Pennsylvania, USA | 40° 19' 59" N | 75° 37' 59" W | 15.8km (9.8 miles) | |
| Boyertown, Berks County, Pennsylvania, USA | 40° 20' 0" N | 75° 38' 15" W | 16.2km (10.1 miles) | |
| Rock Hill Quarry, Rock Hill, East Rockhill Township, Bucks County, Pennsylvania, USA | 40° 24' 15" N | 75° 17' 56" W | 16.4km (10.2 miles) | |
| Martin Stone Quarry, Berks County, Pennsylvania, USA | 40° 21' 40" N | 75° 37' 50" W | 16.4km (10.2 miles) | |
| Rock Hill, East Rockhill Township, Bucks County, Pennsylvania, USA | 40° 24' 18" N | 75° 17' 58" W | 16.4km (10.2 miles) | |
| Gabel Mine, Boyertown, Berks County, Pennsylvania, USA | 40° 19' 43" N | 75° 38' 29" W | 16.5km (10.2 miles) | |
| Collegeville Amethyst Locality, Collegeville, Upper Providence Township, Montgomery County, Pennsylvania, USA | 40° 9' 45" N | 75° 27' 54" W | 16.5km (10.3 miles) | |
| Gill Quarry, East Norriton Township, Montgomery County, Pennsylvania, USA | 40° 10' 10" N | 75° 21' 3" W | 17.8km (11.0 miles) | |
| Phoenixville tunnel (Conrail tunnel; Black Rock tunnel), Phoenixville, Schuylkill Township, Chester County, Pennsylvania, USA | 40° 8' 44" N | 75° 30' 56" W | 19.2km (11.9 miles) | |
| Perkiomen Copper Mine, Perkiomen Mines, Audubon, Lower Providence Township, Montgomery County, Pennsylvania, USA | 40° 7' 58" N | 75° 26' 16" W | 19.8km (12.3 miles) | |
| Gwynedd tunnel (Lansdale-Gwynedd tunnel), Upper Gwynedd Township, Montgomery County, Pennsylvania, USA | 40° 11' 50" N | 75° 16' 4" W | 19.9km (12.3 miles) | |
| Whim shaft, Perkiomen Mines, Audubon, Lower Providence Township, Montgomery County, Pennsylvania, USA | 40° 7' 50" N | 75° 26' 20" W | 20.0km (12.4 miles) | |
| Hereford Township, Berks County, Pennsylvania, USA | 40° 25' 59" N | 75° 37' 35" W | 20.3km (12.6 miles) | |
| Audubon, Lower Providence Township, Montgomery County, Pennsylvania, USA | 40° 7' 40" N | 75° 25' 54" W | 20.4km (12.7 miles) | |
| Ecton Mine, Perkiomen Mines, Audubon, Lower Providence Township, Montgomery County, Pennsylvania, USA | 40° 7' 33" N | 75° 26' 33" W | 20.5km (12.8 miles) | |
| Huffs Church, Hereford Township, Berks County, Pennsylvania, USA | 40° 26' 48" N | 75° 37' 9" W | 20.9km (13.0 miles) | |
| Shimerville, Upper Milford Township, Lehigh County, Pennsylvania, USA | 40° 29' 39" N | 75° 31' 36" W | 21.5km (13.3 miles) | |
| Olafsen Iron Mine, Huffs Church, Hereford Township, Berks County, Pennsylvania, USA | 40° 27' 29" N | 75° 36' 48" W | 21.6km (13.4 miles) | |
| John D. Reitnauer Mine, Seisholtzville, Berks County, Pennsylvania, USA | 40° 28' 0" N | 75° 35' 59" W | 21.6km (13.4 miles) | |
| Morris Mine, Schuylkill Township, Chester County, Pennsylvania, USA | 40° 7' 21" N | 75° 30' 42" W | 21.6km (13.4 miles) | |
| Shanesville, Earl Township, Berks County, Pennsylvania, USA | 40° 21' 51" N | 75° 41' 50" W | 21.9km (13.6 miles) | |
Kibblehouse Quarry, Perkiomenville, Marlborough Township, Montgomery County, Pennsylvania, USA