- Colorado Assoc. of 4Wheel Drive Clubs Inc
- Colorado GO-4's
- Four Corners Canyon Climbers
- Larimer County 4 Wheel Drive Club - We are a family oriented club, organized in 1965, to promote & enjoy the recreation of four wheeling.
- Mile-Hi Jeep Club
- On The Rocks in Colorado Jeep Club - Wheeling and having fun on 30 and 50 trails a year throughout Colorado and Utah. Website with tons of pictures, trip reports and info.
- Rover Riders 4WD Club
- Trailridge Runners 4WD Club - The Trailridge Runners 4WD Club is a group of four wheel drive vehicle enthusiasts who follow the guidelines of Tread Lightly!
- Colorado Four Wheelers