The Oranje Nassau I was a Dutch coal mine located in Heerlen.

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".

This Dutch Limburg location article is a stub.