Note: The city of Lünen is situated on the Lippe River and Seiten Canal north of Dortmund in the German state of North Rhine-Westphalia. Established in the 14th century by the count of Mark, it passed to Brandenburg in 1609, then to Prussia in 1701. The most notable historic structure in its vicinity is Kappenberg Castle, now housing the Dortmund Museum. Coal mining and the production of aluminum, copper, and iron are the main economic activities. The city also serves as a port and a rail junction. Its 2004 estimated population was 92, 200.