The Colorado Trail
The Colorado Trail was designed as a hiking trail, but is useable by mountain bikes in all portions that don't pass through Wilderness Areas. The nearly 500 mile trail connects Denver with Durango and passes through some of Colorado's best known mountain biking spots and is almost all singletrack!
Order maps of the trail from official Colorado Trail Store. Or get the Colorado Trail GIS Reference Map Series is a digital mapping resource for planning and traveling on The Colorado Trail. Available for $40.00
The German tour company www.bikealpin.de organized a Colorado Trail tour, but were not able to do it, because of restrictive tour group rules. If you speak German, they created a great Colorado Trail itinerary.
A really great write up of a mountain bike tour of the Colorado Trail
