Welcome to "Bicycling Colorado's Mountain Passes". I want to invite you on a virtual tour over Colorado's Mountain Passes, as seen from the seat of a bicycle, but not only of interest to cyclists. Pick a favorite summit from one of the tables below, and then explore nearby summits and passes with the navigation bar.

To start out, here are a few summits with detailed descriptions. This list changes from time to time

Colorado Passes - in detail

A few more pass descriptions, organized by nearby towns that can be used as a support base.

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 112 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