On SEPTEMBER 20-21, 2014 (Saturday-Sunday), join us in the beautiful resort town of McCall, Idaho for a 100 mile race that is alpine to the core. Starting and finishing at the famous Burgdorf Hot Springs, IMTUF tackles the trails and summits of this premiere mountain playground. Crossing 8 high passes and gaining over 20,000 feet, this world class course was crafted to be tough and breathtakingly scenic. Train hard and enjoy.

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5/29/2014: Aid station chart has been updated on the CW course page.

9/2/2013:  Second successful IMTUF is in the books with a 62% finisher rate.  19 hardcore finishers out of 27 starters.  A HUGE thanks to our sponsors and volunteers, and major congrats to everyone who tackled the race.  We hope to see you all back next year!

Jeremy Humphrey, Race Director 208.795.7753