Le Sueur River

The Le Sueur River in Blue Earth County ( 1996)

The Le Sueur River near its mouth (2007).

The Le Sueur River is a 178 km long tributary of the Blue Earth River in southern Minnesota.

The Le Sueur River drains an area of 2280 km ² and is on the Blue Earth River, the Minnesota River is an indirect tributary of the Mississippi River.

Run

The river rises in the Hartland Township in northwestern Freeborn County and initially flows northward through the extreme southwest of Steele County from Waseca County and then west in a meandering course to the Blue Earth County. He passes through the city of St. Clair. It flows south-west of Mankato in Blue Earth River, just 5 km above the mouth of the Blue Earth River into the Minnesota River. The largest tributaries are Cobb River and Maple River, which flow about 10 km and 13 km above the mouth of the south .. Another tributary of the Le Sueur River is the Little Le Sueur River, which flows into the Le Sueur River in Waseca County.

The greater part of his river course of the Le Sueur flows on Grundmoränenebenen and the area of ​​a former glacial lake. Foothills of the Big Woods, an area with Hartholzvegetatation, which have now been largely converted to agricultural land, originally formed the Flusssaum on the way south. About 84 % of the catchment area of the Blue Earth River is used for agriculture, mostly through the cultivation of corn and soybeans.

Runoff

The United States Geological Survey maintains a level near the Rapidan Township, about 3 km upstream of the river mouth. In the long-term average 1940-2005, the bed was 16 m³ / s The highest value was measured on 8 April 1965 with 699 m³ / s, the lowest was on February 9, 1959 almost 0 m³ / s have been.