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      • Register Your Bike
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Sponsor
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MERCH

Colby Mountain Trails are CLOSED

Seasonal Closure
Please be sure to be respectful of the local communities and drive slow on your way to enjoy the trails.
Please do not use the trails when they are wet.
Colby Mountain Trails are still Closed. Please wait until Trailworks crews have opened them before riding.
Maintenance of the Colby Mountain Trails includes removing downed trees and hazards, rebuilding features, and clearing drains.
maps
Lookout Cam

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Sponsor Info
MERCH
Donate Today
Sign Up For Updates & Volunteering
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Donate for more trails
Project Info
Supporters and Donors
More Info

Project Info, Updates & Timeline

Support Trails
No Motorized Vehicles
​
​
Current Status: 
 December 2025 Closed
Expected Opening: Spring 2026
There will be maintenance needed on the trails to re-open after the snow melts.

​Sign up to help get these great trails ready!

​In Progress:
 Lookout Trail

Open trails are marked, 
please respect "CLOSED" trail signs as there is ongoing construction and maintenance. 

November 2025: Two trails are opened, Humboldt Drop and Escape Trail! 

Fully Completed: Humboldt Drop, a one-way downhill trail for advanced or experienced MTB riders. Every feature is optional, with jumps, berms, and drops! Unavoidable features are signed DROP.
Escape Trail is a multi-use trail that is built to include
​adaptive MTBs. This trail is both directions.


Thanks to Butte County Search and Rescue, there are Rescue Points signed on Escape and Humboldt Drop. Look for signs with the BCSAR logo and # for reference in case of severe injury or rescue!

Use Trailforks to see trail routes, submit ride reports, or donate to Trailworks using Trail Karma. 
​
Sign Up for our Volunteer Email List, to be invited to workdays at Colby Mountain. 

How to access:
Humboldt Drop: Drive to Humboldt Summit via Humboldt Summit Road, access trailhead toward the West of the open space. 


Escape: While multi-directional, the current and easiest way to access the trail by car is from the Colby Mountain Lookout. Drive to the Lookout using N Philbrook road (gravel)/ FR 27N06 to get on Colby Mountain Lookout Road. At the Lookout, north of the bathroom is a double track. This double track leads you to Escape Trail, which turns West from the ridge. 

All open trail portions of the trail are signed. 
​

Coming soon:
  • Trailheads (Humboldt Summit and The Hub)
  • Home Trail, Willow Trail, and Yana Rim Trail

    ​There's lots more trail to build!
    Consider donating to the Project!

Project Documents

public_scoping_letter_colby_mountain_recreation_project.pdf
File Size: 127 kb
File Type: pdf
Download File

proposed_actions_and_need.pdf
File Size: 265 kb
File Type: pdf
Download File

appendix_a_colby_mountain_recreation_project_map.pdf
File Size: 548 kb
File Type: pdf
Download File

appendix_b_trail_class_matrix.pdf
File Size: 98 kb
File Type: pdf
Download File

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Webpage banner photo courtesy of Explore Butte County

Stay in the Loop!

Stay up to date on the latest news on the Colby Mountain Project, as well as volunteer opportunities with Trailworks to help support and maintain our trails. 
Donate Today & Help Build More Trails
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Chico Velo is a 501.c.3 Non-Profit organization.

THank you to our 2026 BIKE VALET PARTNERS

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Chico Velo is a 501.c.3 Non-Profit organization.