Monroe County Of--sparta, Cashton Hwy Shop, Wilton Hwy Shop Wilton, WI 54670 Phone : (608) 435-6633 Business Category Government Offices-County Government Offices & Public Schools Monroe County Of--highway Dept, Highway Shops 603 Duane St Wilton, WI 54670 Phone : (608) 435-6633 Business Category Government Offices-County Legislative Bodies Government Offices & Public Schools