Flagship race
Gaspin’ Through the Aspens
Enjoy the excellent fall colors, racing through the Wasatch Mountains on September 18th, 2027.
This stunning course begins at Tibble Fork Reservoir in American Fork Canyon, Utah. From the lake, you’ll make your way to the summit pass before looping back to the start, where music, hot cocoa, and your well-earned finisher’s medal await. Along the way, you’ll be treated to breathtaking mountain views and the vibrant fall colors of Utah. And with 95% of the course on singletrack, it’s a trail runner’s dream.
The course delivers everything trail runners love: flowy singletrack, steep technical climbs, rugged descents, and sweeping alpine views.
About the course
Choose your distance
- Elevation gain
- 12,300 ft
- Singletrack
- 95%
- Start / finish
- Tibble Fork Reservoir
Course description
The 50 mile is not for the faint of heart. With extended climbing, higher mileage, and more time on your feet, this course takes everything the 50K offers and pushes it even further.
It follows the same first 31 miles as the 50K, then branches off and heads back up the mountain onto more remote and scenic terrain, past a stunning high alpine lake and through rugged country that will test both your legs and your mindset. This is a true mountain 50 miler, where pacing, nutrition, and staying steady matter just as much as fitness.
- Elevation gain
- 6,800 ft
- Singletrack
- 95%
- Start / finish
- Tibble Fork Reservoir
Course description
The 50K is not for the faint of heart. With 6,800 feet of climbing it’s a challenging course, but worth the effort. It starts at Tibble Fork Reservoir with a short dirt road to spread runners out, then climbs toward the summit pass, where a loop is made along the ridgeline before you head back down to the finish line party.
- Elevation gain
- 3,800 ft
- Singletrack
- 95%
- Start / finish
- Tibble Fork Reservoir
Course description
Starting at the same place as the 50K, the 25K begins at the reservoir and follows a short dirt road to spread out the runners. From there, you’ll head toward the summit pass, where you’ll be rewarded with breathtaking views, then enjoy a fast descent back to the finish.
Race weekend
Race-day information
Packet pickup
Packet pickup is the day before the race, September 17, 2027. More information in the race guide.
Race guide
Aid stations, schedule, and all the race-day details. The updated 2027 guide is coming soon.
Shuttle
Parking is limited, so the shuttle is mandatory for all racers. Official details are in the race guide.
What distances are offered?
A 50 mile (12,300 ft of climbing), a 50K (6,800 ft), and a 25K (3,800 ft). All are 95% singletrack.
Where does the race start and finish?
All three distances start and finish at Tibble Fork Reservoir in American Fork Canyon, Utah.
When is packet pickup?
Packet pickup is the day before the race, September 17, 2027. Details will be in the race guide.
How do I register?
Registration opens January 1, 2027. Email us at highaltituderaces@gmail.com and we’ll let you know when it opens.
What aid is on the course?
Aid station details for each distance will be in the 2027 race guide.
Are there drop bags?
Yes. The 50 mile has one drop bag. Drop-off details will be in the race guide.
Can my crew or family meet me?
Because of the course layout, there are no crew access points along the route. Crew and family are invited to cheer on racers at the finish line and celebrate with them.
What about parking?
Parking at Tibble Fork is limited, so the shuttle is mandatory for all racers. Shuttle times and pickup locations will be in the race guide.
What do finishers get?
Music, hot cocoa, a finisher’s medal, and a finish line party at the reservoir.
Can I get a refund or transfer my entry?
We don’t offer refunds, but you can defer your entry for up to 1 year. How much of your entry carries over depends on when you email us: 6 or more weeks before race day, you can defer your full entry; between 6 and 3 weeks out, 50% of it; and within 3 weeks of race day, 25% of it. Deferrals are to the same race; entries can’t be moved to a different race. You can switch distances: moving up to a longer distance costs the difference in price, and moving down to a shorter one isn’t refunded.
Are there cutoff times?
Yes. The cutoffs for each distance are listed in the race guide.
Can I have a pacer?
Yes, in the 50 mile only. Pacers are new for 2027. They aren’t allowed in the 50K or 25K.
Can I use trekking poles?
Yes. Trekking poles are allowed at all of our races.
Can I bring my dog?
No. Dogs aren’t allowed at our races, so please leave them at home on race day.
Can I volunteer instead?
Yes, and every hour you volunteer earns credit toward a future High Altitude Races entry. See volunteer roles.
I have another question.
Email us at highaltituderaces@gmail.com and we’ll get back to you.
2025 race
Photos
Sept 18, 2027 · American Fork Canyon, UT
Ready for Gaspin’ Through the Aspens?
Registration opens January 1, 2027. Email us to hear first.