TRAILGOAT

IMTUF 100 - Idaho Mountain Trail Ultra Festival 100 Miler — 2026

Idaho, United States · Race day · Sep 19, 2026

Plan this race — pacing, fuel & gear → Open in Course Creator
Course map, elevation profile & surface
Distance
105.7mi
Elev gain
14,188ft
Elev loss
14,193ft
High point
8,045ft
Low point
5,449ft
Effective oxygen
74–82%of sea level
Surface
57% trail
Aid stations as published on the course file
Aid stationMilekm
A Chinook Campground16.526.6
A Willow Basket 119.531.4
A Diamond Ridge water27.444.1
A Upper Payette Lake 132.953.0
A Lake Fork Aid Station60.697.6
A South Crestline Aid68.5110.2
A Box Creek Aid76.1122.4
A North Crestline Aid82.0131.9
A UP290.6145.7
A The Cloochman Clock96.2154.9
A Bear Pete Water & Snackies100.6161.8

Badge colours match the markers on the map above — always confirm locations and cutoffs with the race organizer.

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Nobody from IMTUF 100 - Idaho Mountain Trail Ultra Festival 100 Miler — 2026 has checked this course yet — it’s built from what the race published. Ask them to:Email your race director

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About this course

IMTUF 100 - Idaho Mountain Trail Ultra Festival 100 Miler — 2026 covers 105.7 mi (170.1 km) with 14,188 ft of elevation gain through Idaho, United States. The interactive map above shows the full route with its elevation profile and aid stations, built from the course's GPS file.

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