2016 Wesleyan Discipline: 2403:18

(18) The North Michigan District shall include that part of the state of Michigan which is north and west of the following boundary: beginning at the northwest corner of Ottawa County at Lake Michigan, thence east in a straight line to the northwestern corner of Ionia County, thence east along the northern boundaries of Ionia, Clinton, and Shiawassee Counties to the western boundary of Genesee County, then north and east along the Genesee County line to the eastern boundary of Saginaw County, thence north along the eastern boundaries of Saginaw and Bay Counties to Saginaw Bay, except the Rockford church.