If you want to drive up the Wiesental but don't want to drive B317: you start in Hausen, climb up to Gresgen and surf along the slope to Wembach. The streets are narrow and very little traffic, and breathtaking views also attract!
A wonderful alternative to the federal road in the valley floor! Not for cut optimizers, however - the tiny road curves up and down the side of the valley, but always with a great view. The surface is very good to tidy almost the entire route (07/2020)