Gazetteer/AlmanacFanning's Illustrated Gazetteer of the United States.... (New York: Phelps, Fanning & Co., 1853), 141. Fanning's Illustrated Gazetteer of the United States....GRATIOT COUNTY, situated in the central part of Michigan. Area, 576 square miles. Seat of justice, ---------- .TabsLinksGratiot County, MI