In what mountains is the Barkley Marathon held?
Frozen Head State Park Frozen Head State Park and Natural Area is a state park in Morgan County, Tennessee, in the southeastern United States. The park, situated in the Crab Orchard Mountains between the city of Wartburg and the community of Petros, contains some of the highest mountains in Tennessee west of the Blue Ridge.
Yukon Arctic Ultra The Yukon Arctic Ultra is a series of non-stop multiday races that take place concurrently beginning in Whitehorse, Yukon at the beginning of February each year. The marathon, 100/300/430 mile races follow the course of the Yukon Quest. The longer races have three disciplines: mountain bike, xc-skis or foot.