Lake Slåensø is located directly south of Lake Borre Sø in the Silkeborg Sønderskov forest area. An outflow via the Millingbæk connects it to the Borre Sø.
Julsø (or Jul sø) at Silkeborg is the largest and deepest of the Himmelbjerg lakes between Ry and Silkeborg in the Central Jutland Highlands. As it flows through the Gudenå, it is also part of the Gudenå system.
Vestbirk Sø is one of three artificial lakes created by damming the Gudenå River in 1924 to support the Vestbirk Hydroelectric Power Station. The other two lakes are Bredvad Sø …