Get ready to tackle a laid-back, self-supported 36-hour adventure on the scenic 4-mile Oak Leaf Trail loop in North Dakota's beautiful Sheyenne National Grassland near McLeod—no entry fee required! The well-marked graveled singletrack is easy to follow thanks to wooden posts and blue blazes (watch out for the North Country National Scenic Trail junction, or you might accidentally add 30 miles to your run!). Bring what you need, pace yourself, and enjoy hours of running through gorgeous grassland terrain.