Spectacular Montana scenery, breathtaking climbs, technical descents, miles of challenging single track trail, primitive roads, dirt, rocks, forests, meadows, and cold, clear creeks to splash through. NO PAVEMENT. 50 mile includes approximately 13,400 feet of elevation gain, 50K includes approximately 7,900 feet of elevation gain, 23K includes approximately 3,300 feet of elevation gain. Enjoy and unforgiving and remote run through the rugged and beautiful Elkhorn Mountains. 50 mile and 50K registration opens on December 1, 2015. 23K registration opens on May 1, 2016. Experience Real Montana....Leave Civilization Behind.