City to Sky

City to Sky is an October trail race in Missoula, Montana, starting and finishing near the University District. The series offers a 50K ultra and a 25K option. Runners can select the full mountain route or a shorter version utilizing the latter half of the course. The 50K spans approximately 33 miles with over 8,000 feet of climbing, crossing multiple summits. The route encircles the Pattee Creek Watershed, remaining off-road for nearly its entirety with minimal pavement. It incorporates Missoula open space, conservation land, and urban recreation trails, featuring smooth Montana singletrack. The 25K follows the House of Sky Ridgeline Trail on the second half of the 50K course, introduced for participants seeking the City to Sky event without the full ultra distance. Run Wild Missoula is the organizing body.