The Chippewa River is not a major tributary of Lake Michigan.

The Chippewa River primarily flows through Wisconsin and is a major tributary of the Mississippi River, not Lake Michigan. Major tributaries of Lake Michigan include the Fox River, Kalamazoo River, and Grand River, all of which flow into Lake Michigan from various points in Wisconsin and Michigan. These tributaries play important roles in delivering water, nutrients, and sediment to Lake Michigan, influencing its ecosystem and supporting local habitats.