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Oranje Nassau Mijnen
The Oranje Nassau Mijnen was established in 1893 by Friedriech Honingmann (1841-1913) and Carl Honingmann (1842-1903 to exploit the rich coal deposits in and around Heerlen. That there were coal deposits around Heerlen was already known for centuries (coal had been dug up since the 13th century around Rolduc), but efficient transportation was lacking.
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