Kat'cina Mosa 100K Mountain Challenge Run

07 Aug 2021 (Sat)



Kat'cina Mosa 100K Mountain Challenge Run

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Join Kat'cina Mosa 100K Mountain Challenge Run

Probably the toughest 100K race in the country is held in Utah, in August each year. It is called Kat’cina Mosa 100K but its name has nothing to do with the geography. The race director has interests in the Hopi culture from Arizona, so he named the course after it. The Cat Kachina is also sometimes referred to as a Black Cat Kachina. It’s history is interesting because it was originally inspired by a Navajo runner who ran from place to place giving notification of an approaching ceremony and inviting their neighbors.

A more apt name would probably be Wasatch Back 100K. The course runs a huge loop behind the Wasatch Mountains that rise above Provo and Springvale. The Wasatch Range is a mountain range that stretches approximately 160 miles (260 km) from the Utah-Idaho border, south through central Utah in the western United States. It is the western edge of the greater Rocky Mountains, and the eastern edge of the Great Basin region. The northern extension of the Wasatch Range, the Bear River Mountains, extends just into Idaho, constituting all of the Wasatch Range in that state. According to the Utah History Encyclopedia, Wasatch in Ute means "mountain pass" or "low pass over high range." According to William Bright the mountains were named for a Shoshoni leader who was named with the Shoshoni term wasattsi, meaning "blue heron".  Nearly half of the course shares the same course as Squaw Peak 50, but in the opposite direction. Kat’cina Mosa runs clockwise and includes about 17,000 feet of climbing along the way over its 62 miles.

Course Highlights

This 100K out and back course is a challenging, difficult and scenic loop course through the Wasatch Mountains above Provo, Utah.  The race starts and finishes at the “Kiwanis Pavillion at Kelly’s Grove Park about a 1/4 mile past the Hobble Creek Golf Course Club House. About 42% will be on the same course as the Squaw Peak 50. These sections are Mile 2.1, Pole Heaven to mile 16.27, Rock Canyon and mile 24, just past Big Springs to mile 38.5 – Little Valley. The trail will be flagged . It will consist of 48% dirt trails, 44% dirt roads and 8% paved. Elevation gain is 17,404 feet and loss is 17,404 ft. 13,000ft of elev. gain by mile 28.5 in 3 separate climbs. Then the last half only has about another 4,000ft of climb.

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Route map

directions_runStart Address: Springville,us

flagFinish Address: Springville,us

Kat'cina Mosa 100K Mountain Challenge Run Route Map



Lodging is available at The Hampton Inn & Suites. Camping is available At Cherry Campground 1.2 miles past the start/finish area. Reservations can be made through reserveusa.com. There is also camping available in Provo just off the Center Street exit 268 of I-15 at the KOA Kampground, 320 N 2050 W, Provo. 373-5267. This is about a 20-25 minute drive to the start.

After Race Services

Post race BBQ. Entrants free, all others $5.

Aid Stations

9 Full Aid and 1 water stop and 1 Spring , varying from about 3 to 8 miles apart. Several of our aid station people will be there from The Squaw Peak Event. Water, fluid replacement, fruit, candy, pretzels, cookies, sandwiches, crackers, chips, potatoes, salt, etc. Medical at start / finish, Limited medical at aid station’s.

Award Medals

Unique Awards to overall open and masters. 1st place awards to M/F in 10 year age group winners. Husband/Wife Team and Four Person Team – which must include one male or female. Both Awards will be based on the best overall combined time. The 4 person team requires one person from the opposite sex. T-shirt for all participants and awards to all finishers.

Equipment Storage

Drop bags (check in by 2:30 am AT START). Drop bags at all Aid Stations except AS #5.

Maximum Time

21 hrs


Complimentary pasta dinner, Friday Night, from 5:00 to 7:30PM to all entrants, all others – $5.00 pre-paid. $10.00 at the door.



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Kat'cina Mosa 100K Mountain Challenge Run

check_circle 24h ticket cancellation

check_circle Lowest price guaranteed

check_circle Deals & Discounts

Claim this event if you are the organizer

The race information has been found on the official website of the event or through publicly available sources. Always refer to the official website the latest race information. Please let us know if any data is wrong or missing, by emailing us.