MT. CRESTED BUTTE TO ASPEN

August 30, 2025

The Grand Traverse Mountain Run is a point-to-point ultra marathon from Crested Butte to Aspen, Colorado. The course follows the route of the Grand Traverse Backcountry Ski race. Runners travel 40 miles across the Elk Mountains with over 6,000′ of elevation gain.

The Grand Traverse is operated as a fundraising event for Crested Butte Nordic, a 501(c)(3) recreational non-profit organization.

Runners descend after Star Pass.

Triple Crown and priority registration opens at midnight on Sunday, November 17th.
General registration for the ski, run, and bike opens at midnight on Sunday, December 1st.

Questions? Contact events@cbnordic.org.

A runner enjoys the view in the high alpine.

REGISTRATION

Registration for the 2025 Grand Traverse opens on Sunday, December 1st, at midnight. Per our Forest Service permits, the run is capped at 350 individuals. Historically, it sells out in late winter. Though we will maintain a waitlist, we recommend registering promptly if you wish to race in 2025.

Individuals wishing to enter 2025 Grand Traverse Triple Crown competition may gain guaranteed entry into the Ski event through priority pre-registration beginning November 17, 2024. See the Triple Crown page for more details.

POLICIES, DATES, and DEADLINES

We do not offer race entry refunds or transfers between participants.

We strongly recommend purchasing Racer Protection at registration. Racer Protection covers your registration purchase in the event that you cannot attend the event due to unforeseen circumstances (injury, illness, loss of a job, etc.). You can find more information on Racer Protection on the Run Sign Up registration page.

We will operate a traditional waitlist. As numbers allow, the Race Director will contact waitlisted teams with an event registration link. The waitlist and registration will close about two weeks prior to race day.

A runner cruises down smooth singletrack.

THE COURSE

This is a 40-mile point-to-point event. If you preview any part of the course, be prepared for a long day out in the alpine.

MANDATORY GEAR

Runners are required to carry the following gear:

  • waterproof windshield with hood

  • hat or buff

  • gloves

The listed gear are the essentials required to race. However, every athlete should exercise their own backcountry sense as to what supplementary gear they may wish to pack.

A Colorado Outdoor Search and Rescue Card (or a current Colorado hunting/fishing license) is required to participate in any Grand Traverse race. You will have to show proof of purchase at bib pick-up. Do this ahead of time and save yourself the headache. This $5 supports Colorado Search and Rescue and offers great protection in the unlikely case of a backcountry rescue.

DROP BAGS & AID STATIONS

There are five aid stations on the run course. Drop bags will be available at the Taylor Pass aid station (mile 23.5) and at the finish line.

SHUTTLES

We offer a post-race shuttle from Aspen back to Crested Butte. Spots are limited. The shuttle leaves Ajax Park at 6 p.m. We also offer bike transport for dual sport athletes.

Shuttles and bike transportation will be available to book on Run Sign Up at registration.

PRIZE PURSE

  • Male and Female Podium Cash Awards:

    • 1st Place - $1,000

    • 2nd Place - $700

    • 3rd Place - $400

    Podium winners, age group winners, and randomly selected finishers will receive product awards.

RESULTS

VOLUNTEER

This race takes a village. We rely on our amazing community of volunteers. Volunteer roles will be posted starting December 1st.

The leader at the 2024 Summer GT.

SCHEDULE OF EVENTS

FRIDAY, August 29, 2025

SATURDAY, AUGUST 30, 2025

IMPORTANT:  All information is subject to change.  For the safety of racers and volunteers, weather conditions may require a change in the race start time or location, the official course, or race rules – or may lead to cancellation.

A runner crosses Brush Creek in the early morning hours.

ELITE ATHLETE ENTRY

The Grand Traverse will allocate up to 5 competitive entries per gender in the Trail Run and Mountain Bike events to create a competitive field in each event. 

Athletes must submit the Summer Grand Traverse Elite Entry Application by Friday, August 15th at 5 p.m. Applications will be reviewed on a rolling basis (submit your application early). Entries are at the sole discretion of the Race Director, and athletes will be notified of all decisions by Tuesday, August 19th at 5 p.m. Please note that elite athletes will be given an access code to register but will still be charged event entry fees.

FAQs

  • No. Race registration is used to pay contractors and support organizations like Crested Butte Nordic, Crested Butte Avalanche Center, Crested Butte Search and Rescue, Gunnison Valley O.H.V Alliance of Trailriders, Central Colorado Mountain Riders, and Western Search and Rescue.

  • No. We understand that life happens and things come up that could impact your ability to race with us. We highly recommend purchasing the racer protection which refunds your registration in the event of job loss, COVID, injury, etc. Learn more about racer protection here.

  • Yes. The ski gear list can be found here (be sure to read through all five pages). The run requires a waterproof windshield with hood, hat or buff, gloves, and a CORSAR card or current CO hunting or fishing license. The bike requires the same gear as the run and a bike helmet. Every athlete should exercise their own backcountry sense as to what supplementary gear they may wish to pack.

  • Yes. A Colorado Outdoor Search and Rescue Card (or a current Colorado hunting/fishing license) is required to participate in any Grand Traverse race. You will have to show proof of purchase at bib pick-up. Do this ahead of time and save yourself the headache. This $5 supports Colorado Search and Rescue and offers great protection in the unlikely case of a backcountry rescue.

  • One partner will complete the initial registration and create a team name and password (which will need to be shared with their partner), and the second partner will have until December 15th to complete their half of the registration. Incomplete teams after December 15th will forfeit their entry. If one partner is injured or cannot race, an individual may register a new teammate between December 15th and March 9th. The new teammate must register and pay a 1/2 ski team entry.

  • We will operate a traditional waitlist. As numbers allow, the Race Director will waitlisted members in the order they registered. The last day we will pull teams from the waitlist is two weeks before the race itself.

  • Yes. The Grand Traverse will allocate up to 5 competitive entries per gender in the Trail Run and Mountain Bike events to create a competitive field in each event. Athletes must submit the Summer Grand Traverse Elite Entry Application by Friday, August 15th at 5 p.m. Applications will be reviewed on a rolling basis (submit your application early). Entries are at the sole discretion of the Race Director, and athletes will be notified of all decisions by Tuesday, August 19th at 5 p.m.

  • Yes, but we do expect our racers to have a good understanding of the route because portions of the course will be done in the dark, and trail markings are hard to see. You can access course maps and descriptions on our website and in the racer manual.

  • Please see the racer manuals for full descriptions of aid locations and details.

  • No. If you own your own Garmin/Spot device you can share your details with your family and friends. We do not offer live tracking at this time.

  • Yes. Each of the three races has different cut-off times and locations. Please see the racer manuals for more details.

  • Yes. Shuttles will be available for purchase during registration. The following shuttles are offered (registration cost varies on the contractor providing the service): 

    • GT Ski- Aspen → CB

    • GT Run- Aspen → CB 

    • Dual Sport Bike Transport - CB→ Aspen

    • GT Bike- CB→ Aspen 

Looking for a training race. Join us for the Grin & Bear It Trail Run in Crested Butte!

July 12, 2025

The Grin & Bear It is Crested Butte’s oldest trail challenge. Historically presented as a sprint to Green Lake and back, this classic event has evolved to offer a 25k Loop competition while still maintaining the traditional 15k race.

Runners enjoy the Baxter Gulch Trail.

The Grand Traverse is made possible with the generous support of our partners.