79.18 km, 49.2 mi About 2/3 of this loop (the trough road and blacktail road) encompasses a portion of the Divide Mountain Bike Route, but ridden in the opposite direction that most people ride it. Not advisable to ride this loop counterclockwise, as the 3,000-foot climb up County Road 14 to kick things off would be a killer with extremely steep gradients at the top.