The Böser Kleef is a rock formation, 440 metres above sea level, near the village of Altenbrak in the district of Harz in central Germany. It is made largely of granite.
![](http://upload.luquay.com/wikipedia/commons/thumb/7/71/Blick_auf_Altenbrak.jpg/220px-Blick_auf_Altenbrak.jpg)
The Böser Kleef can be reached on foot from several directions including a footpath from Forsthaus Todtenrode. It lies above the Bode valley in woods. In the second half of the 20th century a refuge hut was built at the top. From the crag there are views of Altenbrak and the surrounding woods.
There is also a checkpoint (No. 64) of the Harzer Wandernadel hiking network on the Böser Kleef.