Government in Plaza, ND Mountrail County Shop210 3rd AvePlaza, ND, 587717014973325CityCounty ClerkCounty Government Mountrail CountyCounty LandfillMountrail County RecorderMountrail County TreasurerTax Assessor Plaza City Fire DeptPO Box 157Plaza, ND, 587717014973368Berthold Fire DeptCity OfCounty Road DepartmentGovernment CityThree Affiliated Tribes Show More