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Puit Marie Blegny
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Blegny-Mine was a coal mine in Trembleur, near Liège (B). Mining at the site was begun by the monks of Val-Dieu Abbey in the 16th century. The first mine shaft was sunk in 1779 and expanded throughout the 19th and early 20th centuries: The Marie pit was dug in 1849.
It was one of the last active coal mines in the Province of Liège, closing after subsidies were withdrawn following the 1973 oil crisis, in 1980. Now it is a mining museum; listed by UNESCO as a World Heritage Site in 2012.
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