Germany, Rhenish Mountains, Essen-Werden, Kalksiepen mine
| Country: |
Germany
|
| Province: |
Rhenish Mountains
|
| Locality: | Essen-Werden, Kalksiepen mine |
| Country: |
Germany
|
| Province: |
Rhenish Mountains
|
| Locality: | Essen-Werden, Kalksiepen mine |