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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. All summit points are linked on the following two interactive maps. In the inset on the right of the map pages you can filter the displayed summits by surface type: paved, unpaved or trails. The second map contains a few additional links from all over the web in different languages (I want to add many more later).

MAP: Colorado Passes and Summits on this web site

MAP: Colorado Passes on the web

Some pages are more detailed than others. All the ones on the following linked page have descriptions. They are grouped by towns that can serve as a kind of base area for daytrips.

The following tables reference all pages (with or without description), All of them contain at least an elevation profile and pictures.

The "recognized passes" table contains all major paved passes, the majority of well known unpaved passes, and also many lesser known divides and historical passes. But not all worthwhile cycling climbs go over named summits. The next 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. These are not included in the previous two tables.

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

When looking for climbs that reach a high (or low) elevation, the following two tables are more useful.

paved road passes/summits (-highest elevation first)
MTB/unpaved passes/summits (-highest elevation first)

The last two tables are arrange the summits by approach heights, also called prominence, which is a measure of how big a climb is, top elevation minus starting elevation.

paved approach heights (largest first)
MTB/unpaved approach heights (largest first)

The following maps divide the state into a grid, and list the points for each grid. These are used in the locale-tab in the navigation bar on the summit pages to see which points are nearby:

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