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


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

Trail 84 (aka the Roller Coaster)

Sevier County Travel Council

Hammer provides endurance products for all participating athletes.


At the start

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.

Partner hotel in Richfield, just 5 blocks from the start/finish.

5 minute video of the 2016 preview run

Another awesome race in Sevier County, with a team of 6

An annual 100km/ 65 mile race.  New in 2021 solo ultra, or 6-person relay.  Starts at Fishlake and endisin downtown Richfield.

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

The 10KM course (NEW in 2021)

Preview Videos 

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..

UPDATE 15-March-2021: The 2021 Crimson Canyons Ultra is approved for Thursday, September 18, 2021 for a 10km (new!), a 25km, and a 50km distance. 

Check out the 2020 event photos HERE

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 systems, 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 will be a 25km (approximately 16 miles) and a 50km ultra (approximate 32 miles). 

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

Race date is Saturday, September 18th, 2021.

Elevation gains & time limits

 *  10km (6.2 miles) 1220 feet / 372 meters (time limit 3 hours)

 *  25km (16.6 miles).  3104 feet / 946 meters (time limit 7 hours).
 *  50km (31.2 miles)  5113 feet / 1558  meters (time limit 12 hours).

See the overview maps below, or the "Course" page for more details.

The new Pahvant MTB Trail System has completed the 65+ miles of incredible single track trails between 2019 and 2020.  Both race distances catch 5 amazing new single-track mountain bike sections that parallel previous years course routing the last four miles.  The new 10km catches another trail going up.

10km runners hit some planks on the Big Red Trail

For health precautions in 2021, modifications may need to be made to how aid stations, crew, and drop bags mechanics operate.

The 10km runs up to Aid Station #6 via the Big Red Trail, then follows the 25km & 50km back down.  The 10km starts at 8AM, and has a 3 hour limit.

Sign up at UltraSignup.com

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

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.

Check out some of their great races

The 25KM course

Race Photos

The local Richfield Bottling Plant provides drinks for runners

The 50KM course

50km race in 2019.  Start at 4:15 to view the full 25km route for 2020

Assorted 2019 Race Photos (above)

Click here for 2019 Racer Photos (in Facebook)

One of two obstacles in the unique Cathedral Canyon

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

Brave the wildlife!  This snake was on the trail above Dairy Canyon in 2019.

2017 Cathedral Canyon Loop (marathon) run-through

Spenser rocking the ultra win in 2018

Registration now open!

Top 2019 Female 1/2 marathon finisher

10% of race profits are donated to CJF

Assorted 2018 Race Photos (above)

Click here for 2018 Racer Photos (in Facebook)