Contact General questions about your library account? Crested Butte LibraryPhysical Address: 504 Maroon Ave Crested Butte, Co 81224 Mailing Address: PO Box 489 Crested Butte, Co 81224 Phone Number: 970-349-6535 Fax Number: 970-349-0348Gunnison Library Physical and Mailing Address: 1 Quartz Street Gunnison, Co 81230 Phone Number: 970-641-3485 Fax Number: 970-641-4653 Suggest an Item for Purchase