| Locality | Latitude | Longitude | Distance | Bearing |
|---|
| Drws-y-Coed Mine (Drwy-y-Coed Mine), Nantlle Vale, Llanllyfni, Gwynedd, Wales, UK | 53° 3' 30" N | 4° 10' 15" W | 0.0km (0.0 miles) | |
| Simdde Dylluan Mine (Talysarn Mine), Nantlle Vale, Llanllyfni, Gwynedd, Wales, UK | 53° 3' 24" N | 4° 10' 27" W | 0.3km (0.2 miles) | |
| Benallt Mine, Nantlle Vale, Llanllyfni, Gwynedd, Wales, UK | 53° 3' 29" N | 4° 11' 4" W | 0.9km (0.6 miles) | |
| Mynydd Drws-y-Coed, Nantlle Vale, Llanllyfni, Gwynedd, Wales, UK | 53° 2' 49" N | 4° 10' 4" W | 1.3km (0.8 miles) | |
| Tyddynbach Mine, Betws Garmon, Gwynedd, Wales, UK | 53° 5' 13" N | 4° 11' 5" W | 3.3km (2.1 miles) | |
| Beddgelert Forest, Beddgelert, Gwynedd, Wales, UK | 53° 1' 44" N | 4° 8' 34" W | 3.8km (2.4 miles) | |
| Ystrad Mine (Silurian Mine), Betws Garmon, Gwynedd, Wales, UK | 53° 5' 36" N | 4° 10' 50" W | 3.9km (2.4 miles) | |
| Carreg Fawr Mine, Betws Garmon, Gwynedd, Wales, UK | 53° 5' 49" N | 4° 10' 34" W | 4.3km (2.7 miles) | |
| Cwm-y-Llan slate mine, Betws Garmon, Gwynedd, Wales, UK | 53° 2' 50" N | 4° 5' 40" W | 5.3km (3.3 miles) | |
| Ogof Owain Glyndwr, Moel Hebog, Beddgelert, Gwynedd, Wales, UK | 53° 0' 28" N | 4° 8' 52" W | 5.9km (3.6 miles) | |
| Shadow Gully, Beddgelert, Gwynedd, Wales, UK | 53° 3' 36" N | 4° 4' 49" W | 6.1km (3.8 miles) | |
| Britannia Mine, Beddgelert, Gwynedd, Wales, UK | 53° 4' 16" N | 4° 3' 57" W | 7.2km (4.5 miles) | |
| Cook and Ddol Slate Quarries, Llanberis, Gwynedd, Wales, UK | 53° 7' 27" N | 4° 9' 12" W | 7.4km (4.6 miles) | |
| Glyn-Rhonwy Slate Quarry, Llanberis, Gwynedd, Wales, UK | 53° 7' 28" N | 4° 8' 47" W | 7.5km (4.7 miles) | |
| Sygun Mine, Beddgelert, Gwynedd, Wales, UK | 53° 0' 55" N | 4° 4' 41" W | 7.9km (4.9 miles) | |
| Hafod y Llan workings, Beddgelert, Gwynedd, Wales, UK | 53° 2' 56" N | 4° 3' 15" W | 7.9km (4.9 miles) | |
| Cwm Bychan Mine, Beddgelert, Gwynedd, Wales, UK | 53° 0' 22" N | 4° 4' 50" W | 8.4km (5.2 miles) | |
| Gorseddau Quarry, Dolbenmaen, Gwynedd, Wales, UK | 52° 59' 12" N | 4° 7' 42" W | 8.5km (5.3 miles) | |
| Dinorwic Quarry, Llanddeiniolen, Gwynedd, Wales, UK | 53° 7' 22" N | 4° 5' 59" W | 8.6km (5.3 miles) | |
| Lliwedd Mine, Beddgelert, Gwynedd, Wales, UK | 53° 3' 29" N | 4° 2' 29" W | 8.7km (5.4 miles) | |
| Gallt y Wenallt outcrops, Beddgelert, Gwynedd, Wales, UK | 53° 3' 33" N | 4° 1' 35" W | 9.7km (6.0 miles) | |
| Pontlyfni meteorite, Clynnog, Gwynedd, Wales, UK | 53° 2' 11" N | 4° 19' 10" W | 10.2km (6.4 miles) | |
| Marchlyn Slate Quarry, Llanddeiniolen, Gwynedd, Wales, UK | 53° 8' 29" N | 4° 5' 38" W | 10.6km (6.6 miles) | |
| Marchlyn Mawr, Llanddeiniolen, Gwynedd, Wales, UK | 53° 8' 9" N | 4° 4' 8" W | 11.0km (6.8 miles) | |
| Prenteg, Dolbenmaen, Gwynedd, Wales, UK | 52° 57' 4" N | 4° 6' 19" W | 12.7km (7.9 miles) | |
| Twll Maen Grisial, Fron Olau, Prenteg, Dolbenmaen, Gwynedd, Wales, UK | 52° 56' 53" N | 4° 6' 47" W | 12.9km (8.0 miles) | |
| Carnedd y Cribau, Beddgelert, Gwynedd, Wales, UK | 53° 3' 51" N | 3° 58' 39" W | 12.9km (8.0 miles) | |
| Tremadoc, Porthmadog, Gwynedd, Wales, UK | 52° 56' 19" N | 4° 8' 29" W | 13.5km (8.4 miles) | |
| Penrhyn Slate Quarry, Llandygai, Gwynedd, Wales, UK | 53° 9' 43" N | 4° 3' 51" W | 13.5km (8.4 miles) | |
| Croesor Quarry, Llanfrothen, Gwynedd, Wales, UK | 52° 59' 28" N | 4° 0' 4" W | 13.6km (8.5 miles) | |
Sygun Mine, Beddgelert, Gwynedd, Wales, UK