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Stillgelegte Zeche in Oer-Erkenschwick (Ruhegebiet)
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The Pennsylvania Mine is well over a 100 years old, but still weathers each season. The mine created a large environmental problem, spilling into Montezuma Creek. Located outside Montezuma, CO.
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Aerial view of the Prosilio Lignite Mine. The portals of the underground exploitation tunnels can be viewed.
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Ruinas de las antiguas instalaciones de la mina de hierro de Llumeres, Asturias. www.alphadrones.es