Welcome to "Bicycling Colorado's Mountain Passes". I would like to introduce you to Colorado's Mountain Passes, paved roads, trails, tracks and dirtroads that cross Colorado's divides. The following tables can be used to access pages about passes, with emphasis on information useful to cyclists.

To start out, here are a few detailed descriptions of a few popular rides in well known resort areas described in detail:

and a few more selected pages. This set changes from time to to time:

The first table contains all major paved passes, the majority of well known unpaved passes, and also many lesser known divides and historical passes, a total of 111 sofar. But not all worthwhile cycling climbs go over named summits. The following two tables reference many of those. Shoulder summits are routes that lead to higher summit, but have an additional approach to the shoulder summit point.

recognized passes	(-alphabetical order)
unrecognized summits	(-alphabetical order)
shoulder summits	(-alpahtebical order)

If you are looking for climbs that reach a high (or low) altitude the following two tables are more useful.

Maybe the easiest way to find a particular road or trail in a particular are is with the following maps:

north western Colorado	north central mountains	north eastern mountains
south western Colorado	south central mountains	south eastern mountains

All the tables can also be accessed in one click from the lower navigation bar on the pass pages.