Bad River, central Mich., with 2 branches; 43°06'N 84°21'W. The N branch rises S of Ithaca in Gratiot co., flows 25 mi/40 km E past St. Charles, to Shiawassee R., just SW of Saginaw. The S branch starts c.18 mi/29 km in SW Saginaw co. The 2 branches meet at St. Charles and join Saginaw R. 5 mi/8 km farther E.