| Locality | Latitude | Longitude | Distance | Bearing |
|---|
| Nant Mine, Nant-y-Gadwen, Aberdaron, Gwynedd, Wales, UK | 52° 48' 20" N | 4° 39' 20" W | 0.0km (0.0 miles) | |
| Benallt Mine, Rhiw, Aberdaron, Gwynedd, Wales, UK | 52° 49' 14" N | 4° 38' 20" W | 2.0km (1.2 miles) | |
| Rhiw, Aberdaron, Gwynedd, Wales, UK | 52° 49' 8" N | 4° 37' 58" W | 2.1km (1.3 miles) | |
| Rhiw Mine, Rhiw, Aberdaron, Gwynedd, Wales, UK | 52° 49' 21" N | 4° 38' 20" W | 2.2km (1.3 miles) | |
| Port Nigel Mine, Llanengan, Llanengan, Gwynedd, Wales, UK | 52° 48' 37" N | 4° 31' 47" W | 8.5km (5.3 miles) | |
| Penrhyn Du Mine, Abersoch, Llanengan, Gwynedd, Wales, UK | 52° 48' 27" N | 4° 30' 0" W | 10.5km (6.5 miles) | |
| Abersoch beach, Abersoch, Llanengan, Gwynedd, Wales, UK | 52° 48' 49" N | 4° 29' 56" W | 10.6km (6.6 miles) | |
| Assheton Mine, Abersoch, Llanengan, Gwynedd, Wales, UK | 52° 48' 30" N | 4° 29' 39" W | 10.9km (6.8 miles) | |
| Carreg Ddu, Porth Dinllaen, Nefyn, Gwynedd, Wales, UK | 52° 56' 43" N | 4° 33' 58" W | 16.7km (10.4 miles) | |
| Gimlet Quarry, Pwllheli, Gwynedd, Wales, UK | 52° 52' 55" N | 4° 23' 49" W | 19.3km (12.0 miles) | |
| Pen-y-chain, Llannor, Gwynedd, Wales, UK | 52° 53' 31" N | 4° 19' 35" W | 24.1km (15.0 miles) | |
| Trwyn-y-tal, Llanaelhaearn, Gwynedd, Wales, UK | 52° 59' 55" N | 4° 25' 45" W | 26.3km (16.3 miles) | |
| Pontlyfni meteorite, Clynnog, Gwynedd, Wales, UK | 53° 2' 11" N | 4° 19' 10" W | 34.1km (21.2 miles) | |
| Tremadoc, Porthmadog, Gwynedd, Wales, UK | 52° 56' 19" N | 4° 8' 29" W | 37.5km (23.3 miles) | |
| Twll Maen Grisial, Fron Olau, Prenteg, Dolbenmaen, Gwynedd, Wales, UK | 52° 56' 53" N | 4° 6' 47" W | 39.7km (24.7 miles) | |
| Minffordd Quarry, Llanfrothen, Gwynedd, Wales, UK | 52° 55' 49" N | 4° 5' 31" W | 40.3km (25.0 miles) | |
| Prenteg, Dolbenmaen, Gwynedd, Wales, UK | 52° 57' 4" N | 4° 6' 19" W | 40.3km (25.1 miles) | |
| Moel Goedog, Talsarnau, Gwynedd, Wales, UK | 52° 52' 30" N | 4° 3' 56" W | 40.4km (25.1 miles) | |
| Llanddwyn Bay, Rhosyr, Isle of Anglesey, Wales, UK | 53° 8' 22" N | 4° 24' 31" W | 40.6km (25.2 miles) | |
| Gorseddau Quarry, Dolbenmaen, Gwynedd, Wales, UK | 52° 59' 12" N | 4° 7' 42" W | 40.7km (25.3 miles) | |
| Ogof Owain Glyndwr, Moel Hebog, Beddgelert, Gwynedd, Wales, UK | 53° 0' 28" N | 4° 8' 52" W | 40.8km (25.4 miles) | |
| Hafotty Mine, Dyffryn Ardudwy, Gwynedd, Wales, UK | 52° 44' 41" N | 4° 3' 2" W | 41.3km (25.6 miles) | |
| Cell Fechan manganese mines, Barmouth, Gwynedd, Wales, UK | 52° 43' 43" N | 4° 3' 14" W | 41.4km (25.7 miles) | |
| Cell Fawr manganese mines, Barmouth, Gwynedd, Wales, UK | 52° 44' 13" N | 4° 3' 4" W | 41.4km (25.7 miles) | |
| Barmouth manganese mines, Barmouth, Gwynedd, Wales, UK | 52° 43' 26" N | 4° 3' 16" W | 41.5km (25.8 miles) | |
| Dripping Well, Barmouth, Gwynedd, Wales, UK | 52° 43' 27" N | 4° 3' 14" W | 41.5km (25.8 miles) | |
| Unnamed quarry, Barmouth, Gwynedd, Wales, UK | 52° 43' 15" N | 4° 2' 54" W | 41.9km (26.1 miles) | |
| Benallt Mine, Nantlle Vale, Llanllyfni, Gwynedd, Wales, UK | 53° 3' 29" N | 4° 11' 4" W | 42.3km (26.3 miles) | |
| Mynydd Drws-y-Coed, Nantlle Vale, Llanllyfni, Gwynedd, Wales, UK | 53° 2' 49" N | 4° 10' 4" W | 42.3km (26.3 miles) | |
| Beddgelert Forest, Beddgelert, Gwynedd, Wales, UK | 53° 1' 44" N | 4° 8' 34" W | 42.4km (26.4 miles) | |
Benallt Mine, Rhiw, Aberdaron, Gwynedd, Wales, UK