The Ombilin Coal Mine (formerly PT Tambang Batubara Ombilin (TBO)) is a coal mine near Sawahlunto, West Sumatra, is loed in a narrow valley along the Bukit Barisan mountains, among the Polan, Pari and Mato hills, approximately 70 kilometres (43 mi) northeast of was discovered in the mid19th century by Willem Hendrik de Greve, and mining was pioneered in the .
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