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12 Hour Romp in the Rocks

October 7, 2017

$150 – $250

Located at the infamous Hartman Rocks Recreation Area, this race will be a timed lap event for solo-ists, duos, or teams wishing to test their stamina for 12 hours riding some of the best singletrack that Gunnison Valley has to offer.. and all at the best time of the year to do it – October! The course itself will be about 16 miles in length and will feature Hartman’s best trails, including some technical singletrack and lots of flowing downhills. Most importantly, all proceeds for this race will gO towards helping the gO Initiative fulfill its mission by keeping kids and adults healthy and active physically and mentally. In addition we’ll be supporting the gO InitiativeBLM and Gunnison Trails work in keeping Hartman Rocks sustainable, tidy and enjoyable for all!


WHAT: 12 hours of singletrack through Gunnison’s incredible Hartman Rocks

WHERE: KOA Gunnison + Hartman’s Rocks Recreation Area in Gunnison, CO

WHO: Test yourself as a sole competitor or team up with 1, 2, 3 or 4 people to see how many laps you can get in 12 hours!

WHEN: October 7, 2017 race starts Saturday, October 7 @ 7:00am. *Be prepared for possible sub-freezing temperatures at night.


Jacks, Tailpipe, Top of the World, Graceland, First Road (3545), Luge, Rocky Ridge, Becks, Notch, Backbone

**Map coming soon!




  • Thursday 10/5 –  3:00-6:00pm at Griggs Orthopedics Office in Gunnison, CO (104 W Ruby Ave)
  • Friday, 10/6 – 2:00pm-7:00 pm at KOA Campground in Gunnison, CO


Race Time:

  • Saturday, 10/7 at 7:00 am-7:00 pm. No racer will be allowed to start a new lap after 6:00 pm.


  • Saturday, 10/7 at 7:00 pm at Hartman Rocks


$150: solo rider

$200: duo team

$400: Team of 3-4 (male/female/coed

$250: FAMILY  (at least 3 members of the same family)


  1. Racers may choose to run in any order and may change the order at any time.
  2. Racers may continue on for more than 1 lap but must check-in after each lap.
  3. Each team member must complete at least one lap or the team will be disqualified.
  4. Coed teams must have at least 1 member of the opposite sex.
  5. Racers must display their race number on their bike at all times.
  6. Teams are required to provide their own hydration system and lighting system throughout the event.
  7. No course support will be provided by the event.
  8. Water and food may be supplied to any racer, at the transition area, as long as the racer and support is off the course and does not interfere with the race. Interference with other racers will result in disqualification.
  9. Lapped racers must yield. Please be vocal as it’s the responsibility of the challenging racer to overtake safely. Racers being lapped must yield as soon as safely possible.
  10. Short-cutting the course is not allowed. This will result in immediate disqualification.
  11. Quiet hours will be imposed from 2 am until 7 a.m. During this time, noise must be kept to a minimum.
  12. Order of finish is determined by number of laps, then by time.
  13. One person must be designated as the Captain of the team to ensure the team is registered correctly (information is correct), and to deal with event officials in the event of problems or concerns.
  14. The event director has final say in any ruling, including rulings made by staff/volunteers.
  15. Additional rules or changes may be added as questions arise, so please continue to check this site for updates. Captains will receive a set of rules at check-in.
  16. For safety reasons, the event reserves the right to cancel or change a portion of the course if inclement weather or dangerous conditions exist. If cancelled, final results will be based on completed laps at the time the event was called. Minimum Age Requirement: All participants under the age of 18 must have a parent or guardian sign the waiver. Additionally, all participants under the age of 18 must have a parent, legal guardian, or designated person present on site for the duration of the event. Participants must be a minimum of 10 years of age.
  17. In the case of catastrophic failure due to weather or another extenuating circumstances that prevents the ongoing scoring of the event or creates a racing environment that is deemed too dangerous for the participants, the race may be called as of a certain time.  Final results will be calculated in one of two ways as determined by the Race Director.(1) The race will be considered over at the point it was called and the results will be taken from the last completed lap.  (2) The riders will be allowed to finish their current lap after the point the race is called and those results will be taken as final. In the case that the race is stopped and restated, the combined results of both parts of the race will be used.


October 7, 2017
$150 – $250
Event Category:
Event Tags:
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Griggs Ortho


Hartman Rocks Recreation Area
Gunnison , CO United States + Google Map

In order to streamline our calendar we've moved guided mountain bike trips to a separate page on our sister site MTBHome.com. You can view those trips by guide service here.

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