The Blue Earth River is a tributary of the Minnesota River, located in southern Minnesota, USA. It flows approximately 75 miles through several counties, including Blue Earth County and Faribault County. The river is known for its scenic beauty and diverse ecosystems, providing habitats for various wildlife species. Historically, the Blue Earth River was significant for the Dakota people, who utilized its resources. Today, it offers recreational opportunities such as fishing, kayaking, and hiking along its banks. The river's name is derived from the blue clay found in its sediment, which was used by Native Americans for pottery.