Skanderborg is a town in Skanderborg municipality, Denmark. It is situated on the north and north eastern brinks of Skanderborg Lake and there are several smaller ponds and bodies of water within the city itself, like Lillesø, Sortesø, Døj Sø and the swampy boglands of Eskebæk Mose. Just north of the town on the other side of Expressway E45, is the archaeologically important Illerup Ådal.