This route follows the "Expert Trail" of the Andechs Trail race.
http://www.andechs-trail.de
"The routes run along unpaved forest, field and meadow paths. Make sure you have suitable shoes! In order to be able to master the Expert Trail, you should have already completed distances of around 20 km!"
At one section it follows the asphalt road instead of crossing through provate property (at the request of the organizers and private owners).
The first place of the race can finish this just under 1:05 hours, the end of the field is at around 2:05 hours.