Vedran Gračan submitted this route.  The description is in Croatian, which you can run through Google Translate.  It seems to be a 280-km loop road in the mountains of Croatia.  The route is divided into 3 sections, with a total of 41 Control Points, which Vedran lists below.  This website (from which we pulled the map below) has some more information.  Vedran also said "It was considered 280 kilometers, but is definitely more than that.

Andres Olivera Scollo submitted the route:

This is a 19km loop route around the western half of Caesar Creek Lake near Waynesville, OH. The route is single and double track with a couple of creek crossings. The route follows the yellow blazes. There is one section on the road where you have to cross the bridge on SR 73. There are multiple places to start - Wellman Meadows, the Visitor Center, the Swim Beach or Fifty Springs.