Alger County Fair Dates: 7/30/2010 - 8/1/2010 Fair Address: Fair Street Rock River Township Fairgrounds Chatham, MI  49816 Mailing Address: PO Box 183 Chatham, MI  49816-0183 Phone: 906.439.5114 Fair office FAX: 906.439.5698 E-Mail: naasz@msu.edu