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Upcoming Events

Hiking – Caribou Ranch Open Space
Thu, Sep 24, 2026

Hiking – Caribou Ranch Open Space

Part Rewilding Ourselves/Part Aspen Peeping/Part Regular Hike. Will include a restorative nature hike to reset ,renew and reconnect. Also an opportunity to see and hike through some beautiful aspen groves, pine trees and meadows.

RMNP - Longs Peak
Thu, Sep 24, 2026

Scramble – RMNP - Longs Peak - The Keyhole

Note: This hike was rescheduled from Sep 17 to Sep 24 due to high probability of rain on Sep 17. To mark the passage of summer, float through the Keyhole to the enchanted land of the Ledges, the Trough, the Narrows and the Homestretch as we summit Colorado’s most iconic 14er.

Boulder Rock Club
Thu, Sep 24, 2026

Climb – Boulder Rock Club

Indoor rock climb

Lost Park Trailhead
Thu–Sat, Sep 24–26, 2026

Backpack – Lost Park TH - Wigwam Trail

3-Day Backpacking Trip - This is a bonus backpacking trip exclusively for graduates of this year's Backpacking School, Group 3.

Three Mile Creek
Thu, Sep 24, 2026

RMOTHG Trip – Three Mile Creek

We will follow Three Mile Creek to the large meadow at the 4 mile point. This is a beautiful fall hike with cool mornings and wonderful aspen. Along the way we will cross the stream close to a dozen and a half times on various log crossings. The return route will be back down the stream.

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.