Cycling the Great Divide - from Canada to Mexico* Mountain bikers from around the world test their mettle on this 2,745 mile route each year * Ultra cycling, including this route through the Rockies, are increasing in popularity * 245 miles have been added to the route since the first edition was published and are now covered in this new update Mostly dirt roads, a little pavement, some single track, and 100% adventure await on the great Divide Mountain Bike Route from Canada to Mexico. Cyclists