Little Sioux River

Little Sioux River

Watershed at a Glance

The Little Sioux River watershed covers 1,812,406 acres in southwestern Minnesota. Its small prairie streams flow through the southern portions of Nobles and Jackson counties and into Iowa.

Hydrologic Unit Code:10230003
Intensive monitoring start year:2011
Major lakesMajor rivers and streams
Bella, Clear, Indian, Iowa, Little Spirit, Loon, Ocheda, Okabena, Round
Little Sioux, Little Sioux West Fork, Okabena Creek


Land use in this watershed is primarily agriculture, with most land in row crop production.

    What's being done

    Starting in 2011, the Little Sioux River watershed, along with three adjacent major watersheds located in the Missouri River Basin, will be starting the MPCA’s major watershed restoration and protection project process. Data collection, assessment, and implementation will occur over 10 years. Each project begins with intensive monitoring, where biological data is collected along with physical and chemical data of streams and lakes in selected watersheds. There are 138 proposed stream sites to be sampled for biological data, 23 stream sites for water quality, and one site for fish tissue.

    Monitoring and assessment reports and data

    Water quality model supporting documents

    Strategy reports

    What is a watershed?

    Illustration showing contour of land directing flow of water

    Learn the basics of a watershed.

    Kelli Nerem, MPCA project manager


    Nobles Soil and Water Conservation District