General Information:


Online registration will open on November 4th. Advance registration is required. There will be no race day registration.

Before March 1st
Before July 1st
After June 30th
Power of Two$80$90$100
Power of Four$90$100$110

Mandatory Racer Check-in

Check-in will be on Friday August 4 in Aspen Mountain Gondola Plaza located at 601 E Dean St. All racers must check in on Friday between 4 – 7pm. All racers will need to sign a waiver and pick-up racer bib. We will also have a gift bag for each racer.

Start Details

The start for both distance races will be in Snowmass Base Village at 8:00am.


The full course will finish in gondola plaza at the base of Aspen Mountain. The two-mountain course will finish at the base of Tiehack on Buttermilk.


Parking is available in the Snowmass base village garage. There is a free bus from the finish line in Aspen to Snowmass on RFTA.Free parking is also available at the Intercept Lot (intersection of Highway 82 and Brush Creek Road) with free buses to both start and finish locations.

Racer Bags

Each racer will be allowed to deposit one bag at the start that will be shuttled to either finish line. In an effort to reduce waste we will not provide a bag, please bring your own. Make sure your name and bib number are clearly written on the outside of the bag.

Course Marking

The course will be marked with red/white striped tape and directional signage with the event logo.

Aid Stations

Each Aid Station will have water, Red Bull, Clif Bars, Clif Shot Gel, Coke, candy and other snacks to keep you fueled. Aid stations will be place at the following locations:
  • Gate onto Government Trail (13.5 miles from start)
  • Base of Tiehack (19.8 miles from start)
  • Top of Congo Trail (24.5 miles from start) (WATER ONLY)
  • Bottom of Midnight Mine (26.3 miles from start)
  • Top of Aspen Mountain (31.7 miles from start) (WATER ONLY)
You should plan to be able to make it from aid station to station without additional support.


  • Stay on the designated trails; no short-cutting switchbacks. Those attempting to take short-cuts will be disqualified and publicly shamed.
  • Headphones are permitted, but please be respectful when entering aid stations and crossing other trails. Be aware that the trails are open to the public and, in spots, cross other trails that may include cyclist, runners, hikers, etc. Please rock-out responsibly.
  • If you choose to drop out please alert the nearest aid station personnel. We do not want to worry your emergency contact person!
  • No littering! We have trash cans and recycle bins at each aid station. Just because it's a race doesn't mean you get to forget your manners.
  • If you must relieve yourself, please use a bathroom (available at the top of Aspen Mtn, Tiehack,) or discretion...
  • All riders must carry a water bottle or hydration pack.

Normal Mountain Operations

We ask each racer to keep in mind that Snowmass and Aspen Mountain will be open to guests as usual starting at 10am. Also Government Trail is open to the general public on race day so please be respectful of the general public on the trails and aware of other users.

Racer Safety

For the safety of every racer, each athlete is required to notify the closest course marshal of any injury or racer who appears to have ventured off-course ASAP. We will have plenty of medical staff available to assist along the course.

Racer Family Lift Tickets

We will be offering 50% off vouchers for family members of racers who wish to watch/cheer from the top of Silver Queen Gondola in Aspen. Vouchers will be available at registration.


Entry fees will be refunded ONLY to athletes with a valid medical reason under the following provisions: Entry fees will be refunded if requested 1 week prior to first day of event onsite registration. Participants must have a valid medical reason and documentation, each case will be reviewed. A 25% service charge will be deducted from all refunds. All refunds are at the sole discretion of Aspen Snowmass. Absolutely no refunds will be given after the above date regardless of reason and no refunds will be given due to event cancellation. Registrations are non-transferable.

After Party & Award Ceremony at Ajax Tavern

After finishing the race we’d like to invite all racers to cheer on the other racers from 12pm to 6pm on the Ajax Tavern deck for Free Budweiser and Bud Light. Awards will be at 2:30pm. Friends and family are invited but beer and food will only be provided to racers.

* Must be 21+ to consume alcohol, other beverages will be available for purchase.