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Activities get outside with us

Courses learn outdoor skills

Upcoming Events

Boulder Rock Club
Wed, Sep 30, 2026

Climb – Boulder Rock Club

Indoor rock climb

Rise and Grind – Boulder Open Space - Woods Quarry Loop Trail
Wed, Sep 30, 2026

Rise and Grind – Boulder Open Space - Woods Quarry Loop Trail

R&G 3.75mi Woods Quarry via Bluebell Mesa

PPG WTS - Basic Land Navigation Classroom Sessions – CMC Zoom Lecture
Wed, Sep 30, 2026

PPG WTS - Basic Land Navigation Classroom Sessions – CMC Zoom Lecture

Classroom sessions for this course will be conducted via two Zoom sessions. Links to the sessions will be provided to registered students by email, prior to classroom dates.

Mtn Bike – Blue Sky Trail
Wed, Sep 30, 2026

Mtn Bike – Blue Sky Trail

An out-and-back ride on flowy trail with some features to keep things interesting. Adding the Indian Summer loop ups the challenge with more hill climbing and technical features.

Hiking – Argentine Peak - via Waldorf site
Wed, Sep 30, 2026

Hiking – Argentine Peak - via Waldorf site

CMC has offered this trip for decades because of its wild beauty and views. It's a very good cardio workout starting at 11,600'. Be prepared for a bumpy ride to get to the start point of the Waldorf site.

Updates from the Blog

September Updates from the CMC Conservation Crew

September Updates from the CMC Conservation Crew

Conservation Coordinator Joey Lancia shares updates from the seasonal Colorado Mountain Club Conservation Stewardship Crew.
Help Protect the Places We Love and Recreate

Help Protect the Places We Love and Recreate

Our public lands, both in Colorado and nationwide, need your voice right now.
How to Use Alpine Trail Runs to Train for Autumn Trail Races

How to Use Alpine Trail Runs to Train for Autumn Trail Races

As autumn approaches and trail race season gets underway, Annalise Grueter explores how alpine trail running and hiking at higher elevations can support your training. She shares her perspective on altitude, the benefits of training in Colorado’s high country, and several routes worth visiting this fall.