O 10 Grand Upper Harz Circuit

Very difficult mountain and valley tour with frequent changes between gravel tracks and asphalt | noumerus single trail passages, some technically difficult | 2 short country road sections | 3 main road crossings! | passes through Schulenberg, Altenau and Clausthal-Zellerfeld.

Starting point of the routes

It is possible join the route at the car park (information board) next to the protestant church, Unter den Birken