Saint Louis River (Lake Superior tributary)

Saint Louis River
The Saint Louis River at Thomson, Minnesota
Mouth of the St. Louis River
Native name	Gichigami-ziibi (Ojibwe)
Location
Country	United States
State	Minnesota, Wisconsin
County	St. Louis and Carlton Counties, Minnesota; Douglas County, Wisconsin
Physical characteristics
Source
• location	Babbitt SE
• coordinates	47°30′04″N 91°49′51″W / 47.5010312°N 91.8307225°W / 47.5010312; -91.8307225
Mouth	Lake Superior
• location	West Duluth
• coordinates	46°45′N 92°06′W / 46.75°N 92.1°W / 46.75; -92.1
Length	192 miles (309 km)
Basin size	3,634 sq mi (9,410 sq km)

The Saint Louis River (abbreviated St. Louis River) is a river in the U.S. states of Minnesota and Wisconsin that flows into Lake Superior. The largest U.S. river to flow into the lake, it is 192 miles (309 km) in length^[1] and starts 13 miles (21 km) east of Hoyt Lakes, Minnesota. The river's watershed covers 3,634 square miles (9,410 km²). Near the Twin Ports of Duluth, Minnesota and Superior, Wisconsin, the river becomes a freshwater estuary. ^[2]