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Crested Butte Ultra
35k, 55k, and 50 Mile
September 30, 2023
Crested Butte, CO

About Crested Butte Ultra

Crested Butte is known for having some of the best trails in the country. Runners will be challenged by this high altitude course. Its wide open views will amaze runners as they traverse through the Gunnison National Forest.  At the lower elevations, stunning wildflowers set against mountain backdrops will greet runners as they work their way up the course.  Fall foliage rivaling New England will distract them from the heart pumping climbs.  Come enjoy a weekend getaway in this quintessential mountain town!

Crested Butte Ultra Race Guide

See the 2023 Race Guide

Cupless Aid Station Information

That's right! We have gone cupless!


What does that mean?

  • Bring your own re-useable cup (Mad Moose Hydrapak cups are available for purchase during packet pick-up)

  • Water dispensers will be located at the start/finish line and at every aid station.

  • Runners can use these to fill bladders, bottles​, and reusable cups

  • Gloved volunteers will pour sodas/misc drinks into runners' reusable cups.

Packet Pickup

Date: Friday, September 29, 2023

Time: 4:00 p.m. – 6:00 p.m.  

Location: Crested Butte Community School

Race Day Packet Pickup

Saturday, September 30, 2023

Crested Butte Community School

5:30 a.m.-7:45 a.m.


Information Regarding Packet Pickup Process:

  • You will need to have a photo ID in order to receive your packet.

  • Runners may pick up the goody bag and shirt of a registered runner who will not be in attendance.

  • Runners may not pick up someone else's bib.  

  • Entries are non-transferable

  • See race guide for all information about packet pickup.

Directions to the Start 

The start and finish line are located at:

Crested Butte Community School

818 Red Lady Avenue

Crested Butte, CO

See parking map

GPS Coordinates (Click for Google Maps)

38°51'52.2"N 106°58'31.8"W

Race Morning Schedule

Race Day Packet Pickup

Saturday, September 30, 2023

Crested Butte Community School

5:30 a.m.-7:45 a.m.

6:00 a.m. - 50 Mile Start  

7:00 a.m. - 55k Start 

8:00 a.m. - 35K Start

10 minutes before each race start - pre-race announcement


Finish Line

The finish line is in the same location as the starting line. We will be serving runner approved goodies. 

Traveling to Crested Butte

Check out the Visit Crested Butte site for more details.

Runner Perks

All runners will receive a custom race shirt, custom BOCO hat, and a finisher's buckle. 


The FAQ Page contains information about:


-Race Rules

-Distance Changes

-Cancelation, transfer, and no refund policy

-Other Runner Requirements​


Crested Butte Ultra results are posted on Ultrasignup.

Volunteer with Mad Moose

Do you like helping your fellow runners succeed? Do you want to support your favorite race company? Do you enjoy giving back to this awesome community? Consider volunteering at one of our future events! As if getting to give back to the running community wasn’t enough, we want to show our gratitude by having all volunteers earn credits toward FREE race entries of your choice! (Friends and Family - You can earn race credits for your runner to use toward their next Mad Moose Event!)


Click HERE for more details about volunteering with Mad Moose!

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