Colorado Columbines
- Denver club formed in 1978 to promote recreational and competitive running for women of all ages. Includes information about club activities, contacts, training runs, and membership.
- http://www.columbines.org/

Boulder Road Runners
- Formed in 1979 to encourage and promote running and running-related activities for people of all ages and abilities. Includes newsletter, race schedule and results, entry forms, and membership information.
- http://boulderroadrunners.org/

Southern Colorado Runners
- Pueblo club promoting fitness throughout southeast Colorado. Includes maps to training areas, membership applications, news, contacts, training run info, and Pueblo High School athletics news.
- http://www.socorunners.org/

Pikes Peak Road Runners
- Colorado Springs. Includes race calendar and results; club news; information on club membership, activities, and events; and a guide to training sites in the area.
- http://www.pprrun.org/

Rocky Mountain Road Runners
- A Denver club; sponsors the Trophy series of monthly races whose aim is for all participants to finish together.
- http://www.rmrr.org/

Durango Motorless Transit
- Running club located in Southwestern Colorado. Includes a calendar of area events, results, and club membership information.
- http://go-dmt.org/