| Locality | Latitude | Longitude | Distance | Bearing |
|---|
| Guerphalès quarries, Glomel, Guingamp, Côtes-d'Armor, Brittany, France | 48° 11' 23" N | 3° 25' 13" W | 6.6km (4.1 miles) | |
| Pen ar Roz, Glomel, Guingamp, Côtes-d'Armor, Brittany, France | 48° 13' 15" N | 3° 24' 25" W | 6.9km (4.3 miles) | |
| Conveau quarry, Gourin, Pontivy, Morbihan, Brittany, France | 48° 10' 16" N | 3° 34' 13" W | 7.3km (4.5 miles) | |
| Trégornan, Glomel, Guingamp, Côtes-d'Armor, Brittany, France | 48° 10' 22" N | 3° 24' 28" W | 8.4km (5.2 miles) | |
| Kerhuo, Gourin, Pontivy, Morbihan, Brittany, France | 48° 7' 37" N | 3° 35' 30" W | 12.1km (7.5 miles) | |
| Pontigou, Langonnet, Pontivy, Morbihan, Brittany, France | 48° 6' 10" N | 3° 28' 27" W | 12.8km (7.9 miles) | |
| Quénécan, Carnoët, Guingamp, Côtes-d'Armor, Brittany, France | 48° 21' 6" N | 3° 31' 9" W | 15.1km (9.4 miles) | |
| Kerbizien, Poullaouen, Châteaulin, Finistère, Brittany, France | 48° 19' 30" N | 3° 38' 39" W | 16.1km (10.0 miles) | |
| Kerivoal, Duault, Guingamp, Côtes-d'Armor, Brittany, France | 48° 21' 29" N | 3° 23' 33" W | 17.6km (11.0 miles) | |
| Boscadouen stream alluvial deposits, Roudouallec, Pontivy, Morbihan, Brittany, France | 48° 6' 38" N | 3° 40' 42" W | 17.7km (11.0 miles) | |
| Castel-Ruphel Quarry (ex Roudouallec), Saint-Goazec, Châteaulin, Finistère, Brittany, France | 48° 8' 44" N | 3° 43' 25" W | 18.4km (11.4 miles) | |
| Castel-Ruphel Quarry, Saint-Goazec, Châteaulin, Finistère, Brittany, France | 48° 8' 43" N | 3° 43' 25" W | 18.4km (11.4 miles) | |
| La Vieille mine, Poullaouen, Châteaulin, Finistère, Brittany, France | 48° 21' 8" N | 3° 39' 3" W | 18.8km (11.7 miles) | |
| La Fonderie slag locality, Poullaouen, Châteaulin, Finistère, Brittany, France | 48° 20' 54" N | 3° 39' 37" W | 18.9km (11.7 miles) | |
| Kernivinen, Plélauff, Guingamp, Côtes-d'Armor, Brittany, France | 48° 10' 38" N | 3° 14' 54" W | 19.1km (11.9 miles) | |
| Kerhors, Plélauff, Guingamp, Côtes-d'Armor, Brittany, France | 48° 10' 17" N | 3° 14' 54" W | 19.3km (12.0 miles) | |
| Le Liorzou, Poullaouen, Châteaulin, Finistère, Brittany, France | 48° 22' 10" N | 3° 38' 4" W | 19.7km (12.2 miles) | |
| Kerservant, Ploërdut, Pontivy, Morbihan, Brittany, France | 48° 7' 41" N | 3° 15' 44" W | 20.2km (12.5 miles) | |
| Gwernavalou Quarry, Trémargat, Guingamp, Côtes-d'Armor, Brittany, France | 48° 19' 26" N | 3° 16' 40" W | 20.3km (12.6 miles) | |
| Regomarien, Plélauff, Guingamp, Côtes-d'Armor, Brittany, France | 48° 11' 26" N | 3° 13' 23" W | 20.7km (12.9 miles) | |
| Kerjulien, Guiscriff, Pontivy, Morbihan, Brittany, France | 48° 1' 56" N | 3° 34' 16" W | 21.2km (13.2 miles) | |
| Croas an Nivit, Plélauff, Guingamp, Côtes-d'Armor, Brittany, France | 48° 11' 0" N | 3° 13' 4" W | 21.2km (13.2 miles) | |
| Ker Laurent, Gouarec, Guingamp, Côtes-d'Armor, Brittany, France | 48° 13' 54" N | 3° 12' 35" W | 21.6km (13.4 miles) | |
| Poullaba vein, Locmaria-Berrien, Poullaouen, Châteaulin, Finistère, Brittany, France | 48° 21' 1" N | 3° 43' 3" W | 21.9km (13.6 miles) | |
| Le Rhun Mine, Plélauff, Guingamp, Côtes-d'Armor, Brittany, France | 48° 12' 52" N | 3° 12' 12" W | 22.0km (13.6 miles) | |
| Keranvel, Guiscriff, Pontivy, Morbihan, Brittany, France | 48° 1' 52" N | 3° 36' 33" W | 22.2km (13.8 miles) | |
| Kergontrary quarry, Plounévez-Quintin, Guingamp, Côtes-d'Armor, Brittany, France | 48° 18' 48" N | 3° 13' 54" W | 22.6km (14.0 miles) | |
| Kerflec'h, Plélauff, Guingamp, Côtes-d'Armor, Brittany, France | 48° 12' 17" N | 3° 11' 29" W | 22.9km (14.2 miles) | |
| Kervoal, Huelgoat, Châteaulin, Finistère, Brittany, France | 48° 21' 7" N | 3° 44' 8" W | 23.0km (14.3 miles) | |
| La Coudraie, Huelgoat, Châteaulin, Finistère, Brittany, France | 48° 21' 57" N | 3° 43' 4" W | 23.1km (14.4 miles) | |
Conveau quarry, Gourin, Pontivy, Morbihan, Brittany, France