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dblack Ute 100 Trail Race

  4.5 ( 2 ) Favorite

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95.6 mile 153.9 kilometer loop
86% Runnable
Extremely Difficult


Ascent: 17,396' 5,302 m
Descent: -17,396' -5,302 m
High: 12,049' 3,672 m
Low: 6,968' 2,124 m


Avg Grade: 7% (4°)
Max Grade: 59% (30°)


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Trail shared by Victor Mariano

A beautiful and challenging 100 mile course, in the La Sal Mountains of Southern Utah.

Victor Mariano

Features Lake · River/Creek · Views · Wildflowers · Wildlife


The Ute 100 is the highest elevation race in Utah, of any distance or discipline. The course is an 85 mile loop, with a 9 mile out-and-back at the beginning. This race has 80 + miles of singletrack, about 10 miles of doubletrack, the remainder is dirt road. The lowest point on the race is about 7,000 feet elevation and the tops out on Manns Peak at 12,272 feet. You'll run on beautiful aspen tree lined trails, some rock scree above tree line, and open field mountain meadows. Runners will have climbs over five mountain passes above 10,000 ft. You'll see the sun rise over the San Juan Mountains in Colorado, then watch the sun set behind the rocks of Arches and Canyonlands National Park.

Need to Know

As with any event of this distance, there are numerous details on course logistics, crew / pacer access points, and aid stations. Please visit the website for a complete list of "need to know" items.


The start and finish will be located at the Mt. Peale Inn in La Sal, Utah.

The first 16 miles is fully self supported by the participant. For the remainder of the course, there will be 7 crew access points located approximately every 10 miles.

The start time is planned for 3:00 A.M. with 40 hours as the time limit to complete the course.

The elevation profile has a high point at 12,272 ft and the low point is about 6,700 ft. The average elevation is 9,200 ft. The total elevation gain is approximately 20,000 ft with an equal amount of elevation loss. The majority of elevation change and highest overall altitude is within the first 40 miles. The biggest climb is around mile 60, from the low point at 6,700 ft to a high point of 10,700 ft.

Flora & Fauna

Most of this race is in an alpine setting with evergreen and Aspen trees. Chances are high that runners will see elk and mule deer on the course as well as other small game. There are some osprey nesting areas near Geyser Pass. Rattlesnakes can be found on this course, most notably on the lower altitude areas of the Jimmy Keen loop.

History & Background

The geology of the area is phenomenal. There will be epic views of the red rocks of southeastern Utah's canyon lands, slick rock sandstone and the Castle Valley.


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Trail Ratings

  4.5 from 2 votes


  4.5 from 2 votes
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This course is at the top of the heap, and is a literal tour-de-climate-zones! From cedar forests, to high-alpine aspen groves and pine forests, to a barren 12,000' peak, and even cactus and sage desert, you see it all on this run! A high-altitude course with epic climbs and descents, scenery that will blow your mind, and an awesome RD! A must-do if you love true mountain runs! Aug 13, 2017

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