The Fox River is a river in eastern Wisconsin in the Great Lakes region of the United States. It is the principal tributary of the Green Bay, and via the bay, the largest tributary of Lake Michigan. The city of Green Bay, one of the first European settlements in the interior of North America, is on the river at its mouth on the Green Bay.

The Fox River (Illinois River tributary) is known locally as an excellent fishery with opportunities for Smallmouth Bass, Flathead Catfish, and Walleye. The river’s watershed encompasses 1720 square miles in Illinois and 938 square miles in Wisconsin.

The Upper Fox River begins as a small stream northeast of Pardeeville. It flows southwest towards Portage and comes within 2 miles (3.2 km) of the Wisconsin River before quickly turning north. After flowing past Montello, the river goes northeast until reaching Lake Butte des Morts.

The Upper Fox River is a section of the historic Fox - Wisconsin Waterway. The Upper Fox River flows northwest from its headwaters to within 2 miles (3 km) of Portage. The river then curves and flows to the north - northeast about 110 river miles from Portage to Lake Winnebago.

The Lower Fox River PCB cleanup effort began in 2004 and is one of the largest of its kind worldwide. After decades of scientific investigation and years of dredging river sediments, sediment removal, and capping activities, active remedial activities were completed in 2020.

The Fox River Watershed is located primarily in Winnebago County but extends west to Green Lake County and south to Fond du Lac County. The watershed is 76,643 acres in size and contains 236 miles of streams and rivers, 3102 acres of lakes and 13,826 acres of wetlands.

From downtown Green Bay, the Fox River State Trail winds along the beautiful Fox River before extending for 25 miles along a former rail corridor. The Fox River corridor has a rich history, beginning with the Native Americans who used footpaths to …

The Fox River watershed covers 2,658 square miles around the Fox River extending from Colgate, WI, to Ottawa, IL. The river runs 223 miles, and flows over 16 dams. More than 1.2 million people reside within the watershed. These maps show the watershed region and the river with its tributaries.

The Fox River, a natural resource gem with many facets, runs through the Village of Waterford and is the source of its name as the place to ford the river.

The Fox River in De Pere, Wisconsin is located in Brown County. It is the bay of Green Bay’s largest tributary. It is a popular angling destination for walleye fishing during the months of March and April because it is used as spawning grounds.