Crested Butte Ultra offers runners an unparalleled experience through some of Colorado's most breathtaking trails. Nestled within the Gunnison National Forest, this race showcases both rugged terrain and serene mountain vistas. Participants will traverse single-track paths winding through lush meadows dotted with wildflowers at lower elevations, while higher up they'll encounter dramatic ridges that offer panoramic views. As runners ascend, fall foliage in vibrant hues of red, orange, and gold provides a stunning backdrop to the challenging climbs. The course is designed to immerse participants in nature's beauty while testing their endurance through varied landscapes. This event isn't just about running; it’s an opportunity to explore one of America’s most picturesque mountain towns. For detailed information on packet pickup times, race maps, aid station locations, cutoff times, and driving directions, visit the official race website. There you’ll also find FAQs, travel tips, and cancellation policies to ensure a smooth registration process and enjoyable weekend getaway in Crested Butte.
Races Offered
50 Miler
Sep 26, 2026
straighten
Distance —
80.5K
terrain
Type —
Running
timer
06:00
sell
$240.00
55K
Sep 26, 2026
straighten
Distance —
55K
terrain
Type —
Running
timer
07:00
sell
$220.00
35K
Sep 26, 2026
straighten
Distance —
35K
terrain
Type —
Running
timer
08:00
sell
$185.00
Weather History
These values represent the 3-year monthly averages for September in Crested Butte.
thermostatTemperature
2.4° / 18.2°
wb_sunnyFeels like
-0.5° / 14.4°
light_mode
Avg sunshine hours
11h 23m
water_drop
Avg rainfall
2.0 mm
ac_unit
Avg snowfall
0.1 cm
air
Avg wind speed
6.1 km/h (Light breeze)
opacity
Sweat loss rate
Low
terrain
Course conditions
Firm and slightly soft
sunny
Max UV Index
Moderate (5.0)
humidity_mid
Humidity
59.7%
wb_twilight
Sunrise
06:49
nightlight
Sunset
19:14
About Crested Butte
Learn more about the host city, Crested Butte.
Crested Butte is a ski resort in the Rocky Mountains region of Southwestern Colorado. Crested Butte is a destination for skiing, mountain biking, and outdoor activities.