The North Face Endurance Challenge Series

The North Face Endurance Challenge Series is a series of trail races ranging from 5k all the way up to 50 miles.  An ideal course layout for elite speedsters and those taking their first strides in the world of ultra trail running, The Endurance Challenge Wisconsin course is run-able from start to finish, provided that you’ve trained properly. A large portion of the course takes place on the renowned Ice Age Trail located 60 miles southeast of Madison in the southern reaches of the picturesque Kettle Moraine State Park.