The Maple River flows through Clinton, Gratiot, Ionia, and Shiawassee Counties in central Michigan before joining the Grand River near Muir. This significant tributary drains 945 square miles and offers diverse fishing opportunities across its length. The river supports a mix of warmwater and coolwater species, with largemouth bass, northern pike, and smallmouth bass being the primary targets in the lower sections flowing through the listed counties. As part of the Grand River watershed—Michigan's second largest—the Maple River features varied habitat from forested floodplains to agricultural landscapes. The river and its surrounding floodplain represent important ecological features, with the Maple River State Game Area encompassing over 10,000 acres across Clinton, Gratiot, and Ionia Counties, providing extensive public access for anglers.