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10 résultats pour : coal seam

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Adit of Nachtigall colliery with coal seam visible above, entrance
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Adit of Nachtigall colliery with coal seam visible...

Access to the Nachtigallstollen, GeoRoute Ruhr, Dünkelberg quarry, in the Muttental valley, here
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Access to the Nachtigallstollen, GeoRoute Ruhr, Dü...

GeoRoute Ruhr, Dünkelberg quarry, in the Muttental valley, here you can see the geology of the
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GeoRoute Ruhr, Dünkelberg quarry, in the Muttental...

Access to the Nachtigallstollen, GeoRoute Ruhr, Dünkelberg quarry, in the Muttental valley, here
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Access to the Nachtigallstollen, GeoRoute Ruhr, Dü...

GeoRoute Ruhr, Dünkelberg quarry, in the Muttental valley, here you can see the geology of the
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GeoRoute Ruhr, Dünkelberg quarry, in the Muttental...

Access to the Nachtigallstollen, tour guide, GeoRoute Ruhr, Dünkelberg quarry, in the Muttental
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Access to the Nachtigallstollen, tour guide, GeoRo...

Visitor group at the entrance to the Nachtigallstollen, tour guide, GeoRoute Ruhr, Dünkelberg
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Visitor group at the entrance to the Nachtigallsto...

Visitor group at the entrance to the Nachtigallstollen, tour guide, GeoRoute Ruhr, Dünkelberg
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Visitor group at the entrance to the Nachtigallsto...

Beckley, West Virginia, The Beckley Exhibition Coal Mine. The low-seam coal mine operated during the first half of the 20th century as the Phillips-Sprague Mine. Tours are now offered of the mine and ...
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Beckley, West Virginia, The Beckley Exhibition Coa...

Geological outcrop with overground coal seam
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Geological outcrop with overground coal seam