What is a watershed?
A watershed is the land area that drains water to a particular stream, river or lake. It is a land feature that can be identified by tracing a line along the highest elevations between two areas on a map, often a ridge.
Le Sueur River Watershed
The Le Sueur River Major Watershed is one of the twelve major watersheds of the Minnesota River Basin. The watershed is located in south central Minnesota within Blue Earth, Faribault, Freeborn, Le Sueur, Steele, and Waseca counties. There are 20 municipalities in the watershed of which the city of Waseca is the largest. The Le Sueur River major watershed area is approximately 1,112 square miles, or 711,838 acres, and empties into the Blue Earth River southwest of Mankato.
There is concern over the resources in the Le Sueur River watershed because of the topography, agriculturally dominated landscape, and increased development pressure in the region. As a result, there has been raised awareness over the quality of surface and groundwater, along with management of wetlands, drainage, nutrients, waste and stormwater. Recent findings have indicated the Le Sueur River as a major contributor of sediment and nutrients to the Minnesota River.