Using search by image on Google (click the camera icon next to the search box on the images tab) it appears to be somewhere in Switzerland.
See http://www.pinkbike.com/news/Switzerland-Mountain-Biking-2012-edition-Part-4.html where it's mentioned about halfway down. It's a hiking trail and bikes are forbidden. I think this might be it http://goo.gl/maps/i0Xgq.
@jochta started
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Using search by image on Google (click the camera icon next to the search box on the images tab) it appears to be somewhere in Switzerland.
See http://www.pinkbike.com/news/Switzerland-Mountain-Biking-2012-edition-Part-4.html where it's mentioned about halfway down. It's a hiking trail and bikes are forbidden. I think this might be it http://goo.gl/maps/i0Xgq.