| Locality | Latitude | Longitude | Distance | Bearing |
|---|
| Benjamin Franklin Mine, Chester Springs, West Pikeland Township, Chester County, Pennsylvania, USA | 40° 5' 39" N | 75° 37' 0" W | 0.0km (0.0 miles) | |
| Chester Springs, West Pikeland Township, Chester County, Pennsylvania, USA | 40° 5' 41" N | 75° 37' 0" W | 0.1km (0.0 miles) | |
| General Trimble's Mine, East Whiteland Township, Chester County, Pennsylvania, USA | 40° 3' 4" N | 75° 35' 23" W | 5.3km (3.3 miles) | |
| Napolean Mine (Jug Hollow Mine), Schuylkill Township, Chester County, Pennsylvania, USA | 40° 6' 0" N | 75° 32' 59" W | 5.7km (3.5 miles) | |
| Buckwater Mine, Charlestown Township, Chester County, Pennsylvania, USA | 40° 6' 0" N | 75° 32' 59" W | 5.7km (3.5 miles) | |
| Charleston Mine, Charlestown Township, Chester County, Pennsylvania, USA | 40° 6' 29" N | 75° 32' 0" W | 7.2km (4.5 miles) | |
| Montgomery Mine, Schuylkill Township, Chester County, Pennsylvania, USA | 40° 6' 17" N | 75° 31' 32" W | 7.8km (4.9 miles) | |
| Phoenix Mine, Charlestown Township, Chester County, Pennsylvania, USA | 40° 5' 50" N | 75° 31' 24" W | 7.9km (4.9 miles) | |
| Samuel Coffman Mine, East Whiteland Township, Chester County, Pennsylvania, USA | 40° 3' 16" N | 75° 32' 16" W | 8.0km (5.0 miles) | |
| Southwest Chester County Mine (New Chester County Mine), Schuylkill Township, Chester County, Pennsylvania, USA | 40° 6' 15" N | 75° 31' 18" W | 8.1km (5.1 miles) | |
| Brookdale Mine, Schuylkill Township, Chester County, Pennsylvania, USA | 40° 6' 3" N | 75° 31' 14" W | 8.2km (5.1 miles) | |
| Mill Lane Farms (Great Valley Corporate Center), Valley Store, East Whiteland Township, Chester County, Pennsylvania, USA | 40° 3' 16" N | 75° 31' 59" W | 8.4km (5.2 miles) | |
| Chester County Mine, Schuylkill Township, Chester County, Pennsylvania, USA | 40° 6' 21" N | 75° 31' 5" W | 8.5km (5.3 miles) | |
| Pennypacker Mine, Charlestown Township, Chester County, Pennsylvania, USA | 40° 5' 14" N | 75° 31' 0" W | 8.5km (5.3 miles) | |
| Wheatley Mines, Schuylkill Township, Chester County, Pennsylvania, USA | 40° 6' 20" N | 75° 31' 0" W | 8.6km (5.3 miles) | |
| Valley Store, East Whiteland Township, Chester County, Pennsylvania, USA | 40° 3' 7" N | 75° 31' 35" W | 9.0km (5.6 miles) | |
| Morris Mine, Schuylkill Township, Chester County, Pennsylvania, USA | 40° 7' 21" N | 75° 30' 42" W | 9.4km (5.9 miles) | |
| Phoenixville tunnel (Conrail tunnel; Black Rock tunnel), Phoenixville, Schuylkill Township, Chester County, Pennsylvania, USA | 40° 8' 44" N | 75° 30' 56" W | 10.3km (6.4 miles) | |
| Malvern, Malvern Borough, Chester County, Pennsylvania, USA | 40° 2' 10" N | 75° 30' 50" W | 10.9km (6.8 miles) | |
| Keystone Trap Rock Quarry, Cornog, Wallace Township, Chester County, Pennsylvania, USA | 40° 4' 36" N | 75° 44' 53" W | 11.4km (7.1 miles) | |
| Cornog, Wallace Township, Chester County, Pennsylvania, USA | 40° 4' 36" N | 75° 45' 17" W | 11.9km (7.4 miles) | |
| Downington, East Caln Township, Chester County, Pennsylvania, USA | 40° 0' 23" N | 75° 42' 11" W | 12.2km (7.6 miles) | |
| Knauertown, Warwick Township, Chester County, Pennsylvania, USA | 40° 10' 17" N | 75° 43' 36" W | 12.7km (7.9 miles) | |
| Marshall Quarry, West Goshen Township, Chester County, Pennsylvania, USA | 39° 58' 49" N | 75° 36' 6" W | 12.8km (7.9 miles) | |
| French Creek Mines, Saint Peters, Warwick Township, Chester County, Pennsylvania, USA | 40° 10' 59" N | 75° 43' 0" W | 13.0km (8.1 miles) | |
| Keim's Mine, French Creek Mines, Saint Peters, Warwick Township, Chester County, Pennsylvania, USA | 40° 11' 0" N | 75° 43' 0" W | 13.0km (8.1 miles) | |
| Saint Peters, Warwick Township, Chester County, Pennsylvania, USA | 40° 10' 48" N | 75° 43' 52" W | 13.6km (8.5 miles) | |
| Trap Quarry, Saint Peters, Warwick Township, Chester County, Pennsylvania, USA | 40° 10' 59" N | 75° 43' 59" W | 14.0km (8.7 miles) | |
| Collegeville Amethyst Locality, Collegeville, Upper Providence Township, Montgomery County, Pennsylvania, USA | 40° 9' 45" N | 75° 27' 54" W | 14.9km (9.3 miles) | |
| Ecton Mine, Perkiomen Mines, Audubon, Lower Providence Township, Montgomery County, Pennsylvania, USA | 40° 7' 33" N | 75° 26' 33" W | 15.2km (9.4 miles) | |
Mill Lane Farms, Valley Store, East Whiteland Township, Chester County, Pennsylvania, USA