Ombilin Coal Mine - Wikipedia
The Ombilin Coal Mine (formerly PT Tambang Batubara Ombilin (TBO)) is a coal mine near Sawahlunto, West Sumatra, Indonesia.It is located located in a narrow valley along the Bukit Barisan mountains, among the Polan, Pari and Mato hills, approximately 70 kilometres (43 mi) northeast of Padang.Coal was discovered in the mid-19th century by Ir. de Greve, and mining was pioneered in the area in 1876.