| Locality | Latitude | Longitude | Distance | Bearing |
|---|
| Downington, East Caln Township, Chester County, Pennsylvania, USA | 40° 0' 23" N | 75° 42' 11" W | 0.7km (0.4 miles) | |
| Copesville, East Bradford Township, Chester County, Pennsylvania, USA | 39° 57' 29" N | 75° 39' 29" W | 7.1km (4.4 miles) | |
| Chester County Poorhouse Quarry, West Bradford Township, Chester County, Pennsylvania, USA | 39° 56' 33" N | 75° 42' 51" W | 7.8km (4.8 miles) | |
| Keystone Trap Rock Quarry, Cornog, Wallace Township, Chester County, Pennsylvania, USA | 40° 4' 36" N | 75° 44' 53" W | 8.1km (5.0 miles) | |
| Cornog, Wallace Township, Chester County, Pennsylvania, USA | 40° 4' 36" N | 75° 45' 17" W | 8.4km (5.2 miles) | |
| Marshall Quarry, West Goshen Township, Chester County, Pennsylvania, USA | 39° 58' 49" N | 75° 36' 6" W | 9.4km (5.8 miles) | |
| Coatesville, Valley Township, Chester County, Pennsylvania, USA | 39° 58' 57" N | 75° 49' 14" W | 10.5km (6.5 miles) | |
| General Trimble's Mine, East Whiteland Township, Chester County, Pennsylvania, USA | 40° 3' 4" N | 75° 35' 23" W | 10.6km (6.6 miles) | |
| Coatesville pegmatite locality, Coatesville, Valley Township, Chester County, Pennsylvania, USA | 39° 58' 59" N | 75° 49' 30" W | 10.8km (6.7 miles) | |
| Benjamin Franklin Mine, Chester Springs, West Pikeland Township, Chester County, Pennsylvania, USA | 40° 5' 39" N | 75° 37' 0" W | 11.8km (7.3 miles) | |
| Chester Springs, West Pikeland Township, Chester County, Pennsylvania, USA | 40° 5' 41" N | 75° 37' 0" W | 11.8km (7.3 miles) | |
| Wagontown, Valley Township, Chester County, Pennsylvania, USA | 40° 0' 38" N | 75° 50' 34" W | 11.8km (7.4 miles) | |
| Steidler pegmatite, Wagontown, Valley Township, Chester County, Pennsylvania, USA | 40° 0' 3" N | 75° 50' 35" W | 11.9km (7.4 miles) | |
| Osborne Hill, Birmingham Township, Chester County, Pennsylvania, USA | 39° 55' 24" N | 75° 36' 24" W | 12.9km (8.0 miles) | |
| Unionville, West Marlboro Township, Chester County, Pennsylvania, USA | 39° 53' 43" N | 75° 44' 3" W | 13.3km (8.3 miles) | |
| Unionville, Newlin Township, Chester County, Pennsylvania, USA | 39° 53' 43" N | 75° 44' 3" W | 13.3km (8.3 miles) | |
| Logan's Quarry, Upland, East Marlboro Township, Chester County, Pennsylvania, USA | 39° 54' 6" N | 75° 46' 5" W | 13.5km (8.4 miles) | |
| Pocopson, Birmingham Township, Chester County, Pennsylvania, USA | 39° 54' 0" N | 75° 37' 33" W | 14.1km (8.8 miles) | |
| Corundum Hill, Unionville, Newlin Township, Chester County, Pennsylvania, USA | 39° 53' 0" N | 75° 43' 59" W | 14.6km (9.1 miles) | |
| Samuel Coffman Mine, East Whiteland Township, Chester County, Pennsylvania, USA | 40° 3' 16" N | 75° 32' 16" W | 14.9km (9.3 miles) | |
| Upland, East Marlboro Township, Chester County, Pennsylvania, USA | 39° 53' 11" N | 75° 46' 27" W | 15.3km (9.5 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 | 15.3km (9.5 miles) | |
| Willowdale, East Marlboro Township, Chester County, Pennsylvania, USA | 39° 52' 27" N | 75° 43' 3" W | 15.4km (9.6 miles) | |
| Willowdale, East Goshen Township, Chester County, Pennsylvania, USA | 39° 52' 27" N | 75° 43' 5" W | 15.4km (9.6 miles) | |
| Valley Store, East Whiteland Township, Chester County, Pennsylvania, USA | 40° 3' 7" N | 75° 31' 35" W | 15.7km (9.8 miles) | |
| Brinton's Quarry, Westtown Township, Chester County, Pennsylvania, USA | 39° 55' 50" N | 75° 33' 10" W | 15.8km (9.8 miles) | |
| Buckwater Mine, Charlestown Township, Chester County, Pennsylvania, USA | 40° 6' 0" N | 75° 32' 59" W | 16.3km (10.1 miles) | |
| Napolean Mine (Jug Hollow Mine), Schuylkill Township, Chester County, Pennsylvania, USA | 40° 6' 0" N | 75° 32' 59" W | 16.3km (10.1 miles) | |
| Malvern, Malvern Borough, Chester County, Pennsylvania, USA | 40° 2' 10" N | 75° 30' 50" W | 16.4km (10.2 miles) | |
| Henry Pusey's quarry, Willowdale, East Marlboro Township, Chester County, Pennsylvania, USA | 39° 51' 47" N | 75° 44' 43" W | 17.0km (10.5 miles) | |
Keystone Trap Rock Quarry, Cornog, Wallace Township, Chester County, Pennsylvania, USA