Mossø is Denmark's third largest freshwater lake and Jutland's largest, as measured by surface area. The lake is located just east of the city of Skanderborg in east Jutland, but is part of both Skanderborg Municipality and Horsens Municipality. Mossø lies in the middle of the area and landscape known as Søhøjlandet (English: The Lake-highland).There is a small lake named Mossø in the forest of Rold Skov in Himmerland.