The Möhne is a river in western Germany, flowing through the state of North Rhine-Westphalia. It is approximately 100 kilometers long and is a tributary of the Ruhr River. The river is known for its scenic landscapes and is popular for recreational activities such as hiking and cycling along its banks. The Möhne is also famous for the Möhne Dam, which was constructed in the early 20th century. This dam plays a crucial role in flood control and water supply for the surrounding areas. Additionally, the dam gained historical significance during World War II when it was targeted in the Dambusters Raid.