In 1978, skier and kinetic artist John King, along with two pals, set out on a singular and epic adventure: a backcountry ski tour from Durango, Colorado to the Medicine Bow Range near Fort Collins. Over six weeks, the trio skied 490 miles, climbed 65,000 vertical feet. They finished gaunt and sun cooked, with boots held together by tape. Their route influenced the design of the Colorado Trail and the locations of the 10th Mountain Division hut system, but the journey has never been repeated. It’s not an overstatement to call this one of the most audacious wintertime feats of endurance in the history of skiing—a new documentary called Moving Line captures all of that beautifully. And for John King the true triumph was the artistic merit of the pursuit itself. John believes that his tracks on that trip sketched lines that extend into his present day and beyond toward his future. In John’s estimation, movement is creation, expedition is art, and all of it guides him every step of the way.