St. Croix River (Wisconsin–Minnesota)
The St. Croix River is a tributary of the Mississippi River, approximately 169 miles (272 km) long, in the U.S. states of Wisconsin and Minnesota. The lower 125 miles (201 km) of the river form the border between Wisconsin and Minnesota. The river is a National Scenic Riverway under the protection of the National Park Service. A hydroelectric plant at the Saint Croix Falls Dam supplies power to the Minneapolis–St. Paul metropolitan area.
The St. Croix River, looking downstream in Wisconsin
Aerial photo near Prescott, Wisconsin, where the clearer waters of the St. Croix meet the muddier Mississippi River.
St Croix River, MN
St. Croix River Dalles at Interstate State Park, Wisconsin.
The Mississippi River is the primary river, and second-longest river, of the largest drainage basin in the United States. From its traditional source of Lake Itasca in northern Minnesota, it flows generally south for 2,340 miles (3,766 km) to the Mississippi River Delta in the Gulf of Mexico. With its many tributaries, the Mississippi's watershed drains all or parts of 32 U.S. states and two Canadian provinces between the Rocky and Appalachian mountains. The main stem is entirely within the United States; the total drainage basin is 1,151,000 sq mi (2,980,000 km2), of which only about one percent is in Canada. The Mississippi ranks as the thirteenth-largest river by discharge in the world. The river either borders or passes through the states of Minnesota, Wisconsin, Iowa, Illinois, Missouri, Kentucky, Tennessee, Arkansas, Mississippi, and Louisiana.
The Mississippi River in Iowa
The source of the Mississippi River at Lake Itasca
The first bridge (and only log bridge) over the Mississippi, about 25 feet south of its source at Lake Itasca
Former head of navigation, St. Anthony Falls, Minneapolis, Minnesota