Midwest Endurance brings you Ultrapalooza! It’s the flattest, awesome-est, running-est party in the Midwest! The trail crosses the beautiful Flint Hills. The Flint Hills represent one of the last remaining tallgrass prairie ecosystems in the world. The eastern portions of the route travels alongside the Marais Des Cygnes River, between rushing waters and towering bluffs, through rolling farmland and riparian woodlands. The Flint Hills Trail is the seventh-longest rail-trail in America, and the longest trail in Kansas. It follows the general route of the Santa Fe National Historic Trail and forms a component of the coast-to-coast American Discovery Trail. Cool, huh?