The Flint River system in southeastern Michigan drains approximately 1,332 square miles across seven counties and flows roughly 142 miles from its headwaters to its confluence with the Shiawassee River. As a principal tributary of the Saginaw River system, it eventually reaches Saginaw Bay of Lake Huron. The river has been significantly impacted by human development dating back to European settlement, with extensive channelization for drainage, numerous dams, and urban/agricultural development affecting its natural flow patterns. Despite these challenges, the Flint River supports diverse fish communities and provides recreational fishing opportunities throughout its length, with water quality having improved considerably since the 1970s following implementation of the Clean Water Act.