Rock River (illinois)

The Rock River is a tributary of the Mississippi River , approximately 285 Mile s (459 Km ) long, in the U.S. State s of Wisconsin and Illinois .

It rises in southeast Wisconsin, in southwest Fond Du Lac County , approximately 10 miles (16 km) south of Ripon and 25 miles (40 km) southwest of Lake Winnebago . It flows south, through the Horicon National Wildlife Refuge , then meanders southward draining the area of southeast Wisconsin between the Wisconsin River and Lake Michigan . It passes Watertown , Jefferson , and receives the Bark River at Fort Atkinson . In northern Rock County it receives the Yahara River , and flows southward through Janesville and Beloit into northern Illinois, where it receives the Pecatonica River 5 miles (8 km) south of the state line.

It flows south through Rockford , then southwest across northwestern Illinois. passing Oregon , Dixon and Rock Falls , where it becomes navigable. It joins the Mississippi at Rock Island .

CITIES AND VILLAGES ALONG THE RIVER

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