Altenau

Altenau is a town and a former municipality in the district of Goslar, in Lower Saxony, Germany. Since 1 January 2015 it is part of the town Clausthal-Zellerfeld. It is situated in the middle of the Harz mountains, between Clausthal-Zellerfeld and the Brocken. It was part of the former Samtgemeinde Oberharz.