Description
The Devil’s Backbone is a challenging mountain running event designed for experienced backcountry athletes seeking a remote and rugged adventure along the Gallatin Crest. Participants will follow a demanding route with significant elevation gain, technical terrain, and limited support — rewarding those who come prepared with self-sufficiency and mountain experience.
With a 25-mile and 50-mile option, from the start, participants will climb steadily into the high country, traversing alpine ridgelines with sweeping views of the surrounding peaks. The course is exposed and subject to fast-changing weather conditions, requiring sound judgment and preparedness for all mountain environments.
All participants should plan to carry essential supplies, including food, hydration, navigation tools, and emergency gear. This event prioritizes personal responsibility and respect for the terrain — it is an opportunity to experience the Gallatin Range in its raw, natural form.
Whether you’re testing endurance, exploring new terrain, or reconnecting with why you love moving through the mountains, the Devil’s Backbone offers a true backcountry challenge rooted in adventure, camaraderie, and respect for the wilderness.
Event Options
!!!New in 2026!!!
Participants can choose between two unforgettable routes through the Hyalite–Porcupine–Buffalo Horn Wilderness:
* 25-Miler — Start Time: 7:00 AM
A stunning point-to-point route beginning at the Portal Creek Trailhead, climbing over Hyalite Peak, and finishing at the Grotto Falls Trailhead. Runners will celebrate at the finish with food, drinks, and community! There will be no Hyalite-to-Portal direction option this year.
* 50-Miler — Start Time: 12:00 AM (Midnight)
A challenging out-and-back route starting and finishing at Grotto Falls Trailhead, with the turnaround at Portal Creek. Participants will summit Hyalite Peak in both directions, taking in sweeping views of the Gallatin Range before returning to Grotto Falls. Plan to spend some miles in the dark since this option starts during the night!!!
Event sign-up will open on 1/5/2026!
Deposit and Donations
The Devil’s Backbone is a free community event, but we ask all participants to contribute a donation in the spirit of giving back. 100% of donations are divided equally and distributed to local non-profits that support our trails, public lands, and outdoor community.
25-Miler: Recommended donation — $90
50-Miler: Recommended donation — $150
When you register, a non-refundable deposit of 50% of the recommended donation amount will be collected to confirm your spot. The remaining balance can be contributed at any time before the event weekend.
Your support helps keep this event sustainable, volunteer-driven, and connected to the places we love most.
Volunteering
We couldn't do this without volunteers! If you're interested in volunteering for the Devil's Backbone, please reach out to our RD, Travis, at trav.caldwell@gmail.com.
Event's current local time: 5:01 AM MT
