The mission of the Idaho Trail Ultra Series is to promote ultrarunning in the State of Idaho and encourage participation in Idaho’s finest trail ultramarathons. We offer a unique assortment of races in varying distances and difficulty for veteran runners and newbies alike, all containing an ultra component.…Four races down so far in the 2012 series. Up next are the IMTUF 100 (imtuf100.com) on October 6 and the Foothills 50k Frenzy on October 20 (foothills50kfrenzy.com)!!

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