Oranje Nassau I
Heerlen, Netherlands
The Oranje Nassau I was a Dutch coal mine located in Heerlen. The mine was in operation from 1899 until 1974. The Oranje Nassau I was the oldest and second largest of the four Oranje Nassau Mijnen-mines. Close to the mine there were several coal washing plants and a large electric power station. The mine dominated the skyline of Heerlen with its two tall chimneys nicknamed "Lange Jan" and "Lange Lies". The former mine is now used as part of the Minewater Project.
Mine data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).