Grand Traverse Mountain Run
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Grand Traverse Mountain Run
The Grand Traverse Mountain Run is a point-to-point ultramarathon from Crested Butte to Aspen, Colorado. The course follows the route of the Grand Traverse backcountry ski race and covers 40 miles across the Elk Mountains with over 6,000' of elevation gain. The event is operated as a fundraising race for Crested Butte Nordic, a 501(c)(3) recreational non-profit.
The course crosses high alpine terrain and may require a long day in the backcountry. Weather can require changes to the official course or rules, or lead to cancellation. Tracking is mandatory for racer safety and cut-off times are strictly enforced.
Mandatory gear for the run includes a waterproof windshield with hood, a hat or buff, gloves, and a tracking device. A Colorado Outdoor Search and Rescue card or a current Colorado hunting or fishing license is required; proof must be shown at bib pick-up. Drop bags are accepted at the Taylor Pass aid station (mile 23.5) and at the finish. There are five aid stations on the run course.
Aid stations provide water, Gnarly Hydrate and Fuel20, Honey Stinger gels and waffles, energy chews, salty and sweet snacks, fresh fruit, and other support; some stations offer full aid items such as cheese quesadillas and mini salted potatoes.
Registration for the 2027 event includes priority Triple Crown pre-registration opening November 16 and general registration opening December 1. The race does not offer refunds or transfers; a waitlist is used as space allows. The event allocates up to five competitive entries per gender in the Trail Run and Mountain Bike events. Volunteers support event operations and shuttles and bike transport are available for participants. Visit the organization's website for the most recent information.
