Wisconsin River

Coordinates: 42°59′22″N 91°09′14″W / 42.98944°N 91.15389°W / 42.98944; -91.15389
Source: Wikipedia, the free encyclopedia.
Wisconsin River
Wisconsin and the Wisconsin River
Location
CountryUnited States
StateWisconsin
Physical characteristics
Source 
 • locationLac Vieux Desert
 • elevation1,683 ft (513 m)
Mouth 
 • location
Mississippi River near Prairie du Chien, Wisconsin
 • coordinates
42°59′22″N 91°09′14″W / 42.98944°N 91.15389°W / 42.98944; -91.15389
Length420 mi (680 km)
Basin size12,280 sq mi (31,800 km2)
Discharge 
 • average12,000 cu ft/s (340 m3/s) at mouth
Official nameLower Wisconsin Riverway
Designated14 February 2020
Reference no.2417[1]

The Wisconsin River is a

Guillaume de L'Isle's map (Paris, 1718). This was simplified to "Wisconsin" in the early 19th century, before being applied to Wisconsin Territory
and finally the state of Wisconsin.

The Wisconsin River originates in the forests of the North Woods Lake District of northern Wisconsin, in Lac Vieux Desert near the border of the Upper Peninsula of Michigan. It flows south across the glacial plain of central Wisconsin, passing through Wausau, Stevens Point, and Wisconsin Rapids. In southern Wisconsin, it encounters the terminal moraine formed during the last ice age, where it forms the Dells of the Wisconsin River. North of Madison at Portage, the river turns to the west, flowing through Wisconsin's hilly Western Upland and joining the Mississippi approximately 3 miles (4.8 km) south of Prairie du Chien.

The highest waterfall on the river is Grandfather Falls in Lincoln County. It creates the borders between Adams, Juneau, Columbia, Sauk, Dane, Iowa, Richland, Grant, and Crawford Counties.

Geology

Wisconsin River watershed (Interactive map)

The modern Wisconsin River was formed in several stages. The lower, westward-flowing portion of the river is located in the unglaciated Driftless Area, and this section of the river's course likely predates the rest by several million years. The lower reach of the river is narrower than its upstream valley, leading to the suggestion that the upper portions of the ancestor of the river flowed east before the Pleistocene.[2]

The remaining length of the river was formed gradually as glaciers advanced and retreated over Wisconsin. The stretch of river from Stevens Point north to

Wisconsin Glaciation. As the glaciers retreated further northward, the river also grew in that direction. South from Stevens Point, the meltwater would have flowed into Glacial Lake Wisconsin, a prehistoric proglacial lake that existed in the central part of the state. As temperatures warmed around 15,000 years ago, the ice dam holding the lake in place burst, unleashing a catastrophic flood that carved the Dells of the Wisconsin River
and joined the upper stretches of the river with the pre-existing lower river valley that today flows from Portage to Prairie du Chien.

History

Guillaume de L'Isle
's map, 1718

In 1673, French missionary

Fox-Wisconsin Waterway, formed a major transportation route between the Great Lakes
and the Mississippi River.

Industry began to form on the Wisconsin in the early 19th century, as loggers started using the river to raft logs downstream from northern forests to sawmills in new cities like Wausau. By the 1880s, logging companies were damming the river to ensure the river had enough capacity for the logs being floated downstream. Later, at the start of the 20th century, more dams were constructed to provide for flood control and hydroelectricity. The dams also spurred tourism, creating reservoirs such as Lake Wisconsin that are popular areas for recreational boating and fishing. Today, the Wisconsin River is the hardest working river in the nation. There are 25 operating hydroelectric power plants on the Wisconsin River. The power plants harness 645 feet of the river's falls to generate nearly one billion kilowatt-hours of renewable electricity a year — enough energy to supply the residential needs of over 300,000 people without creating any pollution.

Despite this, a 93-mile (150 km) stretch of the Wisconsin between its mouth and the Prairie du Sac Dam is free of any dams or barriers and is relatively free-flowing. In the late 1980s, this portion of the river was designated as a state riverway, and development alongside the river has been limited to preserve its scenic integrity.

In 2018, a railroad bridge in Sauk City was removed.

Gallery

Navigable river of the United States

The Wisconsin River is a "navigable river of the United States." This designation primarily means that the federal government has jurisdiction for dams on the river. Dams that include hydropower facilities are regulated by the

United States Constitution. Courts have also ruled that raw logs, even if merely carried via log drives to mills within the state, constitute commerce. On the basis of these judgments, the Wisconsin River is considered a navigable waterway throughout its entire length.[5] This designation does not generally have bearing on recreational use of the river. Boat registrations and fishing licenses are obtained through the Wisconsin Department of Natural Resources, for example.[6]

Lower Wisconsin River State Riverway

The

Prairie du Chien. The Wisconsin Department of Natural Resources manages protected lands of over 75,000 acres (300 km2), including the river itself, islands, and some lands adjacent to the river. In 2020 the riverway was designated as a protected Ramsar site.[1]

There are no dams or man-made obstructions to the natural flow of water between the hydroelectric dam just north of Sauk City and the confluence of the Wisconsin and the Mississippi. This long stretch of free-flowing river provides important natural habitats for a variety of wildlife, including

white-tail deer, North American river otters, beavers, turtles, sandhill cranes, eagles, hawks
, and a variety of fish species.

Recreational opportunities on the lower Wisconsin River range from fishing and canoeing to tubing and camping. Canoe camping is particularly popular because of the abundance of suitable sandbars along the riverway and because no permits are required. On summer weekends,

Mazomanie. According to the Wisconsin Department of Natural Resources, two thirds of river users can be found on the stretch between Prairie du Sac and Spring Green.[7]

Cities and villages along the river

See also

  • List of Wisconsin rivers

References

  1. ^ a b "Lower Wisconsin Riverway". Ramsar Sites Information Service. Retrieved 25 September 2020.
  2. ^ Steven Dutch, "Possible Early Pleistocene Drainage in Wisconsin" Archived 2007-09-27 at the Wayback Machine, Retrieved July 17, 2007
  3. ^ "Louis Joliet - The Famous Journey". The Mariners' Museum. Retrieved 13 May 2014.
  4. ^ "Wisconsin's Name: Where It Came From and What It Means | Wisconsin Historical Society". www.wisconsinhistory.org. 12 February 2013. Retrieved 2017-06-29.
  5. ^ Wisconsin Public Service Corp. v. Federal Power Commission 147 F.2d 743 (1945).
  6. ^ "National Rivers: Wisconsin River Law, on river conservation, river access, paddling, canoeing, kayaking, rafting, fly-fishing, and Wisconsin river ownership". Archived from the original on 2012-02-07. Retrieved 2021-10-16.
  7. ^ "Lower Wisconsin State Riverway". Wisconsin Department of Natural Resources. Retrieved 13 May 2014.

External links

Wikimedia Commons has media related to Wisconsin River.
Wikisource has the text of the 1921 Collier's Encyclopedia article Wisconsin River.
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