The 50K starts by taking the JHMR trails across the hillsides until you reach the top of Rendezvous Mountain. From Rendezvous Mountain, take the Upper Rock Springs Loop along the ridge line towards the summit of Cody Peak. After reaching summit, make your way back down to the Upper Rock Springs Loop. Continue down a service road to the upper Rock Springs drainage. Descend on the "climbers trail" for ~4.5 miles until reaching Yurt trail and connecting back to Hoback Trail. The remainder of the course is in reverse to the JHMR base area.