Old Colorado City Historical Society
- Historical documents and information, maps, and photographs.
- http://history.oldcolo.com/

Old Colorado City Photo File
- Online collection of photographs of Old Colorado City from the Old Colorado City Historical Society archives.
- http://history.oldcolo.com/history/research/OldCCity.html

Old Colorado City Oral History
- Listen to the oral histories by old timers from Old Colorado City. Requires RealAudio, which can be downloaded at the site.
- http://history.oldcolo.com/history/oralhist/oralhist.html

Colorado City History
- General and oral history, research archives, photograph files, stories, maps and more for Colorado City. Colorado Springs annexed Colorado City in 1917, and it is now formally known as the "Westside".
- http://history.oldcolo.com/history/history.html