Between these two valleys the park is situated between Möhnesee in the northwest, Rüthen in the northeast, Brilon in the east, Olsberg in the southeast, Meschede in the south and Arnsberg in the southwest; Warstein lies within the nature reserve.
In 1370, Henry VI sold the possessions Bigge, Rüdenberg and Olsberg and his share of Rappelstein Castle and some possessions around Medelon to the Lords of Gaugreben.
The Landschaft Möhlinbach encompased the villages of Hellikon, Kaiseraugst, Magden, Möhlin, Mumpf, Olsberg, Wallbach, Wegenstetten, Zeiningen and Zuzgen.
Olsberg, Germany, a town in Sauerland, North Rhine-Westphalia, Germany
The cellist Sol Gabetta has since 2005 organized a chamber music festival in Olsberg called Solsberg,.