The Foothills 50K Frenzy is the only "official" ultra in the Boise foothills. It features running on one of the best trail networks in the West. This 31+ mile race gives area ultrarunners a close-to-home venue for a trail ultra and will showcase the tremendous natural resources of the Boise foothills for visitors. The course contains multiple uphill and downhill sections. The terrain is of moderate difficulty, providing a challenge to runners, but not too hard for first-timers.