How hilly is the Idaho Mountain Trail Ultra Festival (IMTUF 100)?
The Idaho Mountain Trail Ultra Festival (IMTUF 100) is described as mountainous. The course listing puts the climb at 6,706 m.
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Decision summary
36:00:00 total cut-off
Historical race-date favourability, not a forecast
Source facts available
Route details
Idaho Mountain Trail Ultra Festival (IMTUF 100) Ultramarathon has known course details for its ultramarathon race. The summary below keeps the focus on what is confirmed for the course.
Quick answers
The Idaho Mountain Trail Ultra Festival (IMTUF 100) is described as mountainous. The course listing puts the climb at 6,706 m.
The Idaho Mountain Trail Ultra Festival (IMTUF 100) route starts at Jug Mountain Ranch, just south of McCall, Idaho (meadow north of the JMR clubhouse) and finishes at Jug Mountain Ranch, McCall, Idaho (start/finish loop). Underfoot, expect almost entirely narrow single-track mountain trail; rough, rocky and root-filled with steep climbs and descents, described as brutal at times. It passes Salmon River Mountains, Jug Mountain Ranch, Louie Lake, Duck Lake and Snowslide. A single clockwise loop (the 'Supercourse', same flow and direction since 2020) crossing eight major mountain passes through ridges and canyons of the Salmon River Mountains.
Eleven fully staffed aid stations roughly 8 to 12 miles apart, including Louie Lake Dam, South Crest, Duck Lake, Snowslide, Lake Fork (#1 and #2), Boulder Lakes, Goat Aid and Upper Payette, plus the Jug Mountain Ranch start/finish; an unmanned water station sits in the Pete Creek area near 7,600 ft. 10.