Join us for the Snowmass Tree-O (2k + 5k + 10k + 17k Challenge) on August 8 & 9, 2025. In partnership with the town of Snowmass and the New Belgium Ranger Station, this unique event will feature a 2k, 5k, and 10k run. The 2k and 5k can be run on Friday night or on Saturday morning. The 10k will only take place one time on Saturday morning at 7:30am. Run one, two, or all 3 distances to complete the 17k Challenge! Run, walk, jog, hike - whatever goes! Complete the course and celebrate with us and a FREE, New Belgium brew at the finish line.

Race Schedule:
FRIDAY, AUGUST 8
5k - 5:00PM
2k - 6:00PM
SATURDAY, AUGUST 9
10k - 7:30AM
5k - 9:30AM
2k - 10:30AM

What’s included:

• (1) FREE craft brew at the finish line
• A Snowmass Tree-O bib and finisher medal
• A chance to earn the Snowmass Tree-O 17k Challenge medal
• A chance to win sweet door prizes from the Colorado Brewery Running Series, our event sponsors, and the host brewery
• Access to event festivities: live music, food from New Belgium Ranger Station, local vendors, fun with our partners and sponsors, goodies, and giveaways
• Optional add-on: Snowmass Tree-O unisex t-shirt

Be active. Have fun. Give back! A portion of all proceeds support local nonprofits.

Important details:
This is a series of untimed, fun runs. All levels of walkers, runners, joggers, and hikers are welcome. This is an open course, meaning roads will NOT be closed. You are responsible for obeying all traffic laws and regulations.

This course is not suited for running strollers, so please plan ahead if you have small children coming along. You must bring a valid ID or driver's license. You do not need to be 21 to enjoy the event, but you must be 21 to enjoy the beer. Please drink responsibly. Dogs and kids (under 12 run for free) are welcome on the course! Note: this course is not suitable for strollers.