Contact us Unions & Activities Email: Unions@nau.edu Phone: 928-523-4313 1050 S. Knoles Drive PO Box 5670 Flagstaff, AZ 86011 University Union Contact Information Tab Open du Bois Center Contact Information Tab Closed University Union Contact Information Email: Info.Desk@nau.edu Phone: 928-523-4636 Lost and Found: unionlostandfound@nau.edu du Bois Center Contact Information Email: Info.Desk@nau.edu Phone: 928-523-1594 Lost and Found: dublostandfound@nau.edu