Pennington mine, Pontbriand, Thetford Mines, Les Appalaches RCM, Chaudière-Appalaches, Québec, Canada
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An open pit 200m by 100m. It is full of water and closed off by a dam. It had been used by the National Mine as a reservoir. It was mined for asbestos between 1909 and 1923.
3 entries listed. 2 valid minerals.
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GAUDARD, S. (1993) Voyages au coeur des Appalaches. Published by: Musée Minéralogique et Minier de la région de l’amiante, Thetford Mines, Québec, 117 p.