| www.fourteenerworld.com Great photos, news updates, trivia & games, and a forum for issues and questions. Also the best source for Colorado Mountain links. | |
| www.cohp.org The ultimate highpoints authority - prominence maps as well. | |
| Ryan Schilling's site Produced the data for the last 20 of the 100 most prominent peaks in Colorado. Ryan carefully continues to expand this list. Also a well-rounded collection of trip reports to all sorts of destinations in Colorado. |