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Get ready for the return of the 12 Hours of Sunlight—bigger, better, and bolder in 2025! After an epic first year, we’re back with this thrilling endurance challenge that will push your limits. Whether you’re flying solo or teaming up with friends, this classic test of stamina is not to be missed!
The Challenge: Race against the clock as an individual or in teams of 2 or 4 to see how many laps you can conquer on our 1,800-vertical-foot Sun King uphill route in 12 hours. Skin up, ski down, and repeat—how far can you push yourself?
Key Details
Bib & Schwag Pick-up: Grab your race bibs and gear at Sunlight Ski & Bike (downtown) on Friday, Jan 24th, from 5-7 PM, or at the Sunlight lodge on race day from 5-5:30 AM. We encourage as many racers as possible to join us downtown on Friday!
Required Gear: All racers must have a headlamp, helmet, and DH-rated skis or a split-board. Helmets are mandatory for all downhill segments—safety first! Note: Snowshoes and uphill-only skis are not allowed.
Race Perks: At the race's end, join us in the lodge for food, drinks, and giveaways! The top individuals and teams will take home custom 12 Hours of Sunlight gear and lift tickets for the 2024/25 season.
Hydration & Fueling Station: Stay fueled and hydrated at our start/finish line station, stocked with a variety of race-day goodies to keep you going strong.
Drop Zones: There will be both outdoor and indoor drop bag zones for your convenience—choose between the start/finish line or the lodge (just 250 feet away).
Important: There will be no race-day registration, so secure your spot now!
Ready to take on the ultimate endurance challenge? Register today and see how many laps you can crush in 12 hours at Sunlight!
Sunlight Mountain Resort
10901 County Road 117
Glenwood Springs, CO 81601
800.445.7931 or 970.945.7491
Sunlight Mountain Resort operates with a special use permit from the USDA Forest Service, White River National Forest. Sunlight Mountain Resort is an equal opportunity service provider and employer.
First Aid Number: 970-947-5149
(only active during winter and normal business hours 9am-4pm)
Due to a scheduled power outage on Thursday, November 21st, from 12 PM to 4 PM MST, our online sales and guest services on the Mountain may be temporarily unavailable.
Sunlight Ski & Bike will not be affected.
Mountain access is CLOSED for snowmaking operations. This includes all uphill travel.