The Great Divide Bike Route was the project of a Missoula, Montana based Adventure Cycling Association. The strategy was to connect a route which paralleled (within 50 miles) the Great Divide from the Canadian border to the Mexican border. Avoiding tough single tracks and adhering to public-right-of way roads, without the need to build new trails or obtain new rights-of-way. And thus alleviating, without contributing to the impact of cyclists and hikers in the area. The GDMBR has become to mountain bikers what the Appalachian Trail is to hikers. Its combines bicycle touring, mountain biking and backpacking into an activity aptly named 'bikepacking'.
State by state breakdown of mileage: Montana: 695 miles Idaho: 72 miles Wyoming: 483 miles Colorado: 544 miles New Mexico: 696 miles