Demanding mountainbike route with varied impressions of the Oberharz, starting in Lautenthal and sections in the Harz foreland The tour starts with an ascent to the Oberharz peaks Schalke and Bocksberg, from where wide views over the northern Harz foreland, Oberharz and mountain slopes of the Hochharz are possible. The route continues through varied valleys in the Oberharz between Zellerfeld, Schulenberg and Altenau towards the Hochharz. Above the Sösetal valley, the route leads to the Acker mountain plateau in the Nationalpark Harz. The route follows the mountains up to the southern edge of the Harz in the town of Lonau and leads to Osterode am Harz from there with views to the Harz foreland. There the route leaves the Harz and leads north over fields through small villages and forests on the edge of the Harz. Via a steep ascent in the northern Oberharz and a fast descent, it goes back to the town Lautenthal.