Since this climb hardly leads through the forest,
it is not a typical Black Forest climb.
In the open landscape one can enjoy meadows full of flowers
and views on the surrounding hills, Freiburg and the Vosges.
We begin in Au where the Waldstrasse meets
the L122 and take the L122
five hundred meters to the south.
Then, following the sign Horben, we turn left into the Katzental.
In this beautiful valley we leave the noise of the city behind us.
Two kilometers further we turn sharply to the left
and begin with the most beautiful part of the trip.
Biking also gets hard here.
First, the slope is 10%.
Then, heading for a ridge straight ahead,
the slope increases to some 12%.
On top of the ridge lies the village of Langackern.
There we turn right and drive easily to Horben.
Upon leaving this last village,
a very steep section (a kilometer of 11.6%) begins.
On passing the Buckhof one can relax a little,
before going into the tough
(average slope 10%) final one and a half kilometers.
Here the road is
inaccessible to cars.