Gravel Rides from Crested Butte

Definitely Kebler Pass.  It is part of the West Elk scenic loop which is something like 150 miles total.  Kebler Pass is unpaved but rideable on a road bike.  The loop travels along the top of the Black Canyon of the Gunnison and is one of the most scenic in the state.  I suggest riding from Crested Butte, over Kebler Pass, Paonia, Hotchkiss, Crawford and get somebody to pick you up at the Blue Mesa Dam.  Probably a little over 100 miles with maybe 7000 feet of climbing - an epic day for sure!