Sint Pietersberg in Maastricht on the border with Belgium. At the top left, the first start of the downhill of subsoil from the ENCI quarry, now known as d'n Observant. Date: 29 March 1948 Location: Limburg, Maastricht, Sint Pietersberg Keywords: landscapes, marrow quarries, mining Personal name: ENCI

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Photo credit: © BNA Photographic / Alamy / Afripics
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