Lac qui Parle River, South Dakota

The Lac qui Parle River is a tributary of the Minnesota River, 118 miles (190 km) long, in southwestern Minnesota in the United States. A number of tributaries of the river, including its largest, the West Branch Lac qui Parle River, also flow in eastern South Dakota. Via the Minnesota River, the Lac qui Parle River is part of the watershed of the Mississippi River, draining an area of 1,156 square miles (2,994 km²) in an agricultural region. Slightly more than two-thirds of the Lac qui Parle watershed is in Minnesota. Lac qui parle means “the lake which speaks” in the French language, and was a translation of the Sioux name for Lac qui Parle, a lake on the Minnesota River upstream of the mouth of the Lac qui Parle River.