:''This article is about the river in central and eastern
Wisconsin. For the unrelated river that begins in far southeastern Wisconsin, see
Fox River (Illinois River tributary).''

Map of the Fox River watershed showing the Fox and Wolf rivers.

Looking west toward Buffalo Lake in
Montello

Looking east at the Upper Fox River in Montello

the
Highway 41 bridge over the Lake Butte Des Morts just north of the river's entry into Lake Winnebago

The bed of the Lower Fox River in
Appleton during bridge repairs.

Fishing

Ducks
The 'Fox River' is a river in eastern and central Wisconsin. Geographers divide the Fox into two distinct sections, the Upper Fox River that flows from central Wisconsin into
Lake Winnebago, and the Lower Fox River that links Lake Winnebago with Green Bay. Together, the two sections give the Fox River a length of 200 miles (322km).
Geography
The Upper Fox River begins as a small stream northeast of
Portage. It flows southwest towards that city 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. Here it is joined by the tributary
Wolf River before entering Lake Winnebago at
Oshkosh. The Lower Fox begins at the north end of Lake Winnebago, where it flows north past
Neenah,
Menasha, and
Appleton as it begins its 39 mile (64 km) course towards the Bay of Green Bay. The river drops around 164 feet (50 m) over this short stretch, and prior to the construction of European-style dams after 1850, the river had many sizable rapids. The Lower Fox ends after flowing through downtown
Green Bay and into the Bay of Green Bay. Altogether, the Fox-Wolf watershed drains an area of about 6429 square miles (16,650 km²), giving the Fox an average discharge rate of 4132 ft³/s (117 m³/s) into the Bay of Green Bay.
History
Prior to European settlement in the late 1600s, the shores of the Fox River and Green Bay were home to roughly half the 25,000 Native Americans who lived in what is today the
State of Wisconsin. The first Europeans to reach the Fox were the
French, beginning with
Jean Nicolet in 1634. In 1673 explorers
Jacques Marquette and
Louis Joliet canoed up the river as far as Portage. Here they made the short
portage from the Fox to the Wisconsin River and then canoed on towards the
Mississippi River, establishing an important water route between the
Great Lakes and the
Mississippi River known as the
Fox-Wisconsin Waterway. This route was used frequently by fur traders during the
French colonization of the Americas. The French-Canadian men who established homes on the Fox River married
First Nation women, producing a mixed-blood population similar to the
Metis of Canada.
The Fox-Wisconsin Waterway's importance continued into the 1850s, when the Fox and Wisconsin Improvement Company built locks and dams on the Fox and a canal to connect it to the Wisconsin River at Portage. The company was hoping to establish Green Bay as a port city to rival
Chicago by making Fox-Wisconsin Waterway into the principal shipping route between Lake Michigan and the Mississippi River. However, this goal was never reached, largely because the Upper Fox remained too shallow for significant shipping even after damming and dredging.
Instead of developing as a transportation corridor, the Lower Fox became a center of industry. During the mid 1800s, when Wisconsin was a leading producer of
wheat, several
flour mills sprang up along the river to harness its abundant water power. During the 1860s, as Wisconsin's wheat production declined, these flour mills were replaced by a growing number of
paper mills. The Lower Fox proved an ideal location for paper production, owing to its proximity to lumbering areas that could supply
wood pulp to make paper. Several well known paper companies were founded in cities along the river, including
Kimberly-Clark, Northern Paper Mills (creator of Quilted Northern), and the Hoberg Paper Company (creator of
Charmin).
Paper Industry
The Lower Fox remains a major area for paper production. There are currently 24 paper and pulp mills along the Lower Fox River that produce more than five million tons of paper per year and employ around fifty thousand people. The principal cities located in this valley are Green Bay, Appleton, and Oshkosh.
Environment
The high concentration of paper mills and other industry along the Lower Fox have historically been the source of much pollution to the river. Public debate about this contamination began as early as 1923, but little was done to improve the river until federal legislation was passed in 1972. Much effort has since been put into cleaning the Fox, but problems still exist. According to some measures of pollution (e.g.
dissolved oxygen, pollution-tolerant worm counts), the Lower Fox River is much cleaner than it was before 1972. However, according to other measures of pollution (e.g.,
phosphorus, estrogenic compounds, discarded pharmaceuticals), the river waters are slightly more contaminated than before 1972. As a result, debate over the river's contamination continues between environmentalists, the paper industry, Indian tribes, and elected officials at the federal, state and local levels.
While not officially designated as a U.S.
Superfund site, the Lower Fox River bottom still has some sections contaminated with toxic chemicals. These
contaminated sediments are the river's current environmental problem. One contaminant of special concern today is a group of chemicals called
Polychlorinated biphenyls or PCBs. PCBs entered the river from many sources, but the largest deposits of contaminated sediments are traceable from the local paper recycling mills which have been part of the region's history, culture and economy, thus making it a difficult issue.
Since the late 1800s, dredging of river bottom sediments has been done to allow large ships to enter the Fox River. The contaminated sediment has been used since the 1960s to fill local wetlands and after 1978 to create an off-shore engineered holding area called Renard Isle aka, Kidney Island.
Among the wildlife in the Fox River Valley are birds such as
mallard ducks and
Canadian geese, and fish such as
walleye.
See also
★
List of Wisconsin rivers