4 Seasons, 9 Trailheads, 100+ Kilometers of Endless Outdoor Fun The 100+ kilometer American Birkebeiner Trail system attracts skiers, runners, bikers, trekkers, and hikers seeking fun and adventure in Wisconsin’s Northwoods. Home to events like the Slumberland American Birkebeiner, the Fat Bike Birkie, and the Birkie Trail Run, the trails are maintained by our world-class … Continue reading The American Birkebeiner Trail System