| Locality | Latitude | Longitude | Distance | Bearing |
|---|
| Difficult Run, Fairfax County, Virginia, USA | 38° 58' 37" N | 77° 14' 54" W | 0.0km (0.0 miles) | |
| Unnamed schist quarries, Potomac, Montgomery County, Maryland, USA | 38° 58' 39" N | 77° 13' 15" W | 2.4km (1.5 miles) | |
| Cropley, Montgomery County, Maryland, USA | 38° 58' 52" N | 77° 13' 14" W | 2.5km (1.5 miles) | |
| Maryland Mine (Allen shaft), Potomac, Montgomery County, Maryland, USA | 38° 59' 44" N | 77° 13' 53" W | 2.5km (1.6 miles) | |
| Watson Mine (Anderson Property; Potomac and Watson Mine), Potomac, Montgomery County, Maryland, USA | 39° 0' 8" N | 77° 14' 2" W | 3.1km (1.9 miles) | |
| Shaft #2, Ford Mine, Potomac, Montgomery County, Maryland, USA | 39° 0' 24" N | 77° 14' 21" W | 3.4km (2.1 miles) | |
| Rock Run gold placers, Cropley, Montgomery County, Maryland, USA | 38° 59' 21" N | 77° 12' 30" W | 3.7km (2.3 miles) | |
| Shaft #1, Ford Mine, Potomac, Montgomery County, Maryland, USA | 39° 0' 39" N | 77° 14' 18" W | 3.8km (2.4 miles) | |
| Ford Mine, Potomac, Montgomery County, Maryland, USA | 39° 0' 40" N | 77° 14' 18" W | 3.9km (2.4 miles) | |
| Sawyer Mine, Cropley, Montgomery County, Maryland, USA | 38° 59' 17" N | 77° 12' 15" W | 4.0km (2.5 miles) | |
| Great Falls, Fairfax County, Virginia, USA | 38° 59' 53" N | 77° 17' 17" W | 4.2km (2.6 miles) | |
| Irma Mine, Cropley, Montgomery County, Maryland, USA | 38° 59' 8" N | 77° 12' 6" W | 4.2km (2.6 miles) | |
| Stanmore Drive, Potomac, Montgomery County, Maryland, USA | 39° 0' 47" N | 77° 13' 50" W | 4.3km (2.7 miles) | |
| Montgomery Mine (Potomac Mine), Potomac, Montgomery County, Maryland, USA | 39° 0' 42" N | 77° 12' 42" W | 5.0km (3.1 miles) | |
| Eagle Mine, Potomac, Montgomery County, Maryland, USA | 39° 0' 8" N | 77° 12' 2" W | 5.0km (3.1 miles) | |
| Lynch Mine, Cropley, Montgomery County, Maryland, USA | 38° 59' 12" N | 77° 11' 29" W | 5.1km (3.1 miles) | |
| Bull Neck Mine (Kirk Mine; Bull Neck Run Mine; Virginia Mines Inc. Mine), Bull Neck Run, Gold-Pyrite Belt, Fairfax County, Virginia, USA | 39° 0' 0" N | 77° 18' 0" W | 5.1km (3.2 miles) | |
| Harrison Mine (Potomac), Cropley, Montgomery County, Maryland, USA | 38° 58' 50" N | 77° 11' 6" W | 5.5km (3.4 miles) | |
| Potomac, Montgomery County, Maryland, USA | 39° 1' 4" N | 77° 12' 31" W | 5.7km (3.5 miles) | |
| Hise Prospect, Fairfax County, Virginia, USA | 38° 56' 10" N | 77° 18' 15" W | 6.7km (4.1 miles) | |
| Jenkins Farm Prospect, Fairfax County, Virginia, USA | 38° 59' 3" N | 77° 19' 38" W | 6.9km (4.3 miles) | |
| Toms Run Quarry, Montgomery County, Maryland, USA | 38° 59' 43" N | 77° 10' 9" W | 7.1km (4.4 miles) | |
| Tri-State Stone Company Quarry (Bethesda Quarry; Tri-State Stone Company; Inc.), Potomac, Montgomery County, Maryland, USA | 38° 59' 20" N | 77° 9' 43" W | 7.6km (4.7 miles) | |
| Unnamed Schist Quarry Near Cabin John Park (MRDS - 10068002), Cabin John, Montgomery County, Maryland, USA | 38° 58' 48" N | 77° 9' 37" W | 7.6km (4.7 miles) | |
| Stoneyhurst Quarry Number 1, Montgomery County, Maryland, USA | 38° 59' 25" N | 77° 9' 42" W | 7.6km (4.7 miles) | |
| Unnamed schist quarry, Potomac, Montgomery County, Maryland, USA | 39° 0' 15" N | 77° 10' 0" W | 7.7km (4.8 miles) | |
| Cabin John, Montgomery County, Maryland, USA | 38° 58' 29" N | 77° 9' 31" W | 7.8km (4.8 miles) | |
| Stoneyhurst Quarry Number 3, Montgomery County, Maryland, USA | 38° 59' 32" N | 77° 9' 37" W | 7.8km (4.9 miles) | |
| Cabin John Creek, Montgomery County, Maryland, USA | 38° 59' 20" N | 77° 9' 33" W | 7.8km (4.9 miles) | |
| Stonyhurst Quarries, Montgomery County, Maryland, USA | 39° 0' 38" N | 77° 9' 29" W | 8.6km (5.4 miles) | |
Great Falls, Fairfax County, Virginia, USA