| Locality | Latitude | Longitude | Distance | Bearing |
|---|
| Prince Edward Mine (Moel Croesau), Trawsfynydd, Gwynedd, Wales, UK | 52° 55' 43" N | 3° 52' 12" W | 0.0km (0.0 miles) | |
| Cwmprysor Mine (Arenig Mine), Trawsfynydd, Gwynedd, Wales, UK | 52° 55' 29" N | 3° 49' 47" W | 2.7km (1.7 miles) | |
| Croes y Ddwyafon Quarry, Ffestiniog, Gwynedd, Wales, UK | 52° 57' 48" N | 3° 51' 44" W | 3.9km (2.4 miles) | |
| Foel-gron Slate Mine, Ffestiniog, Gwynedd, Wales, UK | 52° 58' 6" N | 3° 52' 16" W | 4.4km (2.7 miles) | |
| Drum Slate Quarry, Ffestiniog, Gwynedd, Wales, UK | 52° 58' 9" N | 3° 53' 7" W | 4.6km (2.9 miles) | |
| Graig Ddu Slate Quarry, Ffestiniog, Gwynedd, Wales, UK | 52° 59' 31" N | 3° 53' 59" W | 7.3km (4.5 miles) | |
| Manod Quarry (Manod New Setts Quarry), Ffestiniog, Gwynedd, Wales, UK | 52° 59' 7" N | 3° 55' 34" W | 7.3km (4.6 miles) | |
| Moel Llyfnant Mine, Llanuwchllyn, Gwynedd, Wales, UK | 52° 53' 55" N | 3° 46' 20" W | 7.4km (4.6 miles) | |
| Rhiwbach Slate Quarry, Bro Machno, Conwy, Wales, UK | 52° 59' 48" N | 3° 52' 35" W | 7.6km (4.7 miles) | |
| Blaen-y-cwm Quarry, Bro Machno, Conwy, Wales, UK | 52° 59' 49" N | 3° 53' 11" W | 7.7km (4.8 miles) | |
| Cwt y Bugail Quarry, Bro Machno, Conwy, Wales, UK | 53° 0' 10" N | 3° 53' 15" W | 8.3km (5.2 miles) | |
| Ffestiniog Granite Quarry, Ffestiniog, Gwynedd, Wales, UK | 52° 59' 18" N | 3° 56' 45" W | 8.4km (5.2 miles) | |
| Diffwys Casson Slate Quarry, Ffestiniog, Gwynedd, Wales, UK | 52° 59' 51" N | 3° 55' 18" W | 8.4km (5.2 miles) | |
| Cwm-machno Quarries, Bro Machno, Conwy, Wales, UK | 53° 0' 19" N | 3° 51' 43" W | 8.5km (5.3 miles) | |
| Votty and Bowydd Quarry, Ffestiniog, Gwynedd, Wales, UK | 52° 59' 56" N | 3° 55' 31" W | 8.6km (5.4 miles) | |
| Maenofferen Slate Quarry, Ffestiniog, Gwynedd, Wales, UK | 53° 0' 0" N | 3° 55' 17" W | 8.6km (5.4 miles) | |
| Arenig Station Quarry, Llanycil, Gwynedd, Wales, UK | 52° 56' 10" N | 3° 44' 27" W | 8.7km (5.4 miles) | |
| Tanygrisiau Railway Station, Tanygrisiau, Ffestiniog, Gwynedd, Wales, UK | 52° 59' 9" N | 3° 57' 38" W | 8.8km (5.4 miles) | |
| Nant yr Helfa Mine, Pantllwini, Llanycil, Gwynedd, Wales, UK | 52° 56' 42" N | 3° 44' 13" W | 9.1km (5.7 miles) | |
| Ffestiniog, Gwynedd, Wales, UK | 52° 59' 54" N | 3° 56' 41" W | 9.2km (5.7 miles) | |
| Moel Ysgyfarnogod, Talsarnau, Gwynedd, Wales, UK | 52° 53' 23" N | 3° 59' 47" W | 9.5km (5.9 miles) | |
| Wrysgan Slate Mine, Ffestiniog, Gwynedd, Wales, UK | 52° 59' 27" N | 3° 58' 13" W | 9.6km (6.0 miles) | |
| Llechwedd slate quarry, Ffestiniog, Gwynedd, Wales, UK | 53° 0' 17" N | 3° 56' 22" W | 9.7km (6.0 miles) | |
| Gloddfa Ganol Quarry (Oakley), Ffestiniog, Gwynedd, Wales, UK | 53° 0' 7" N | 3° 56' 52" W | 9.7km (6.0 miles) | |
| Cwmorthin Quarry, Tanygrisiau, Ffestiniog, Gwynedd, Wales, UK | 52° 59' 49" N | 3° 57' 56" W | 9.9km (6.2 miles) | |
| Princess Marina Mine (Bedd-y-Coedwr Mine; Beddcoedwr Mine), Ganllwyd, Gwynedd, Wales, UK | 52° 50' 16" N | 3° 52' 9" W | 10.1km (6.3 miles) | |
| Ffestiniog Slate Quarry, Ffestiniog, Gwynedd, Wales, UK | 53° 0' 21" N | 3° 57' 4" W | 10.1km (6.3 miles) | |
| Gwynfynydd Mine (Gwyn Mine; Morgan Mine; Mount Morgan Mine; British Gold Fields), Ganllwyd, Gwynedd, Wales, UK | 52° 50' 13" N | 3° 52' 30" W | 10.2km (6.3 miles) | |
| Cwmheisian East Mine, Ganllwyd, Gwynedd, Wales, UK | 52° 50' 10" N | 3° 52' 9" W | 10.3km (6.4 miles) | |
| Cwmheisian West Mine, Ganllwyd, Gwynedd, Wales, UK | 52° 50' 10" N | 3° 52' 25" W | 10.3km (6.4 miles) | |
Moel Llyfnant Mine, Llanuwchllyn, Gwynedd, Wales, UK