Griggs County Of--county Shop Cooperstown, ND 58425 Phone : (701) 797-3420 Business Category Government Offices-County Government Offices & Public Schools County Shop 405 15th St Se Cooperstown, ND 58425 Phone : (701) 797-3420 Business Category Government Offices-County Legislative Bodies Griggs County Road Dept 808 Rollin Ave Sw Cooperstown, ND 58425 Phone : (701) 797-3420 Business Category Government Offices-County Highway & street construction Grading Contractors Road Maintenance Government Offices & Public Schools