Brilon is a town in North Rhine-Westphalia, Germany, that belongs to the Hochsauerlandkreis. Brilon is on the Brilon Heights, at an altitude of …Brilon is a town in North Rhine-Westphalia, Germany, that belongs to the Hochsauerlandkreis. Brilon is on the Brilon Heights, at an altitude of about 450m, and the upper reaches of the river Möhne. The town lies between the Arnsberg Forest nature reserve to the west and the Lake Diemel nature reserve and the Hoppecke to the south-east.