10km runners hit some planks on the Big Red Trail

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Sevier County Travel Council

Hammer provides endurance products for all participating athletes.

Trail 84 (aka the Roller Coaster)

5 minute video of the 2016 preview run

Sylo Inn / Ramada is our Partner hotel.  5 blocks from the start.

Preview Videos 

CJF helps create good sustainable jobs for disadvantaged young adults in Cambodia through several programs.  To support the good work they do, 10% of race profits will be donated to this 501c3 non-profit.

10% of race profits are donated to CJF

The 25KM course

Gary's Shoes provides gift certificates to the male and female winners of each distance

The 10KM course (NEW in 2021)

The 2022 Crimson Canyons Ultra 50km and 25km & 10km trail runs will be on Saturday, September 17, 2022.

Explore wild red rock canyons and primal trails in this unforgettable run.  This run links several canyons, dry washes, remote sections of the Paiute ATV Trail system, and the brand new Pahvant Mountain Bike Trail System, into a very unique experience. Run up a slot-like red rock canyon, trek atop a packed natural clay fin under colorful hills, power up and speed down remote trails, and catch great vistas along ridgelines. There is a 50km ultra, a 25km, and a new 10km. 

The race is located in Richfield, Utah, just a 2 hour 35 minute drive South of the SLC International Airport.

Elevation gains & time limits

  • 10km (6.2 miles) 1220 feet / 372 meters (time limit 4 hours)
  • 25km (16.6 miles).  3104 feet / 946 meters (time limit 8 hours).
  • 50km (31.2 miles)  5113 feet / 1558  meters (time limit 12 hours).

For more detail, see the overview maps below, or on the "Course" page.

The new Pahvant MTB Trail System has completed the 85+ miles of incredible single track trails between 2019 and 2021.  Both race distances catch 5 amazing new single-track mountain bike sections that parallel previous years course routing the last four miles.

Single-track bike trails run downhill by 50km & 25km runners:  Faulty, One-in-a-Pinion, Kiln-It, Cairn-age, and Tank Run.  The new 10km catches the Big Red & Kiln-it trails up, and then follows the 25km route down the iconic Cairn-age trail, plus the Tank Run trail.

Event photos from previous years:

A downhill road 1/2 marathon and 5km through an amazing abandoned canyon.  Also runs through the Fremont Indian State Park.  Located about 20 minutes South of Richfield..

ATV/UTV rentals and greats tours in the Richfield area

Tooele Trail Racing puts on 4 or 5 great, minimalist trail runs each year.  No shirts, no medals, just come for the love of the trail.


Runner submitted photos 2020 (above)

Run the Bonneville Salt Flats from Dusk to Dawn!  August 21-22, 2020.

2021 Aid Stations - Crew Points - Drop Bags - Cut-Offs Times


Image:  The Big Red trail.  Photo by Jana Herzog

50km race in 2019.  Start at 4:15 to view the full 25km route for 2022

Race Photos

The 50KM course

Preview of Dairy Canyon, Trail 84, and the new Faulty and Cairn-Age Trails.  

The local Richfield Bottling Plant provides drinks for runners

The spectacular lands of the Fishlake National Forest and their permission makes this race possible

One of two obstacles in the unique Cathedral Canyon

-- 2022 registration is closed--