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The Buffalo River Watershed covers more than 1,100 square miles in portions of Becker, Clay, Otter Tail, and Wilkin counties, with a small portion of its headwaters in the White Earth Reservation.
Significant restoration work by organizations in the area have made the south branch of the Buffalo River a water-quality success story.
The Leech Lake River Watershed consists of approximately 854,659 acres (1,335 sq. miles) in the northern part of the Upper Mississippi River Basin. The watershed includes parts of Beltrami, Cass, and Hubbard counties and the Leech Lake Reservation (Leech Lake Band of Chippewa).
The Red Lake River Watershed, which covers 909,024 acres, is part of the Red River Basin in northwestern Minnesota. The Red Lake River begins its course in Beltrami County at Lower Red Lake.
The Rainy River - Rainy Lake Watershed covers 583,791 acres. Open water makes up 75,815 of those acres and wetlands occupy another 84,851 acres. The watershed is 64% in St. Louis County and 36% in Koochiching County. The northern boundary is part of the international border waters with Ontario, Canada.
Partnerships and diversified funding drive the work to restore water quality in impaired streams in the Red Lake River Watershed through science-based interventions.
The Mississippi River - Lake Pepin Watershed includes 205,747 acres that drain several small, coldwater streams in bedrock-dominated bluff country.
A watershed is the area of land where all of the water that drains off of it goes into the same place — a river, stream or lake.
The St. Louis River Mercury TMDL will determine mercury reductions needed for lakes and rivers in the St. Louis River watershed.
Seventeen TMDL projects undertaken in the Lower Minnesota River Watershed, to address nutrient, turbidity, fecal coliform, chloride, and other impairments.
Ten TMDL projects undertaken in the Lower St. Croix River Watershed to address nutrient, biota, bacteria, and other impairments.
Thirty TMDLs undertaken in the Mississippi River - Twin Cities Watershed to address excess nutrients, turbidity, bacteria, and more.
The South Fork Crow River Watershed covers 818,428 acres. It is located in south-central Minnesota and encompasses parts of Kandiyohi, Renville, Meeker, McLeod, Sibley, Wright, Carver, and Hennepin counties.
The North Fork Crow River Watershed covers 949,107 acres.
Addressing excess nutrient levels in Lake Pepin based on the site-specific water quality eutrophication criteria for the lake developed by the MPCA.
A new planning effort in northwest Minnesota takes a basin-wide approach to reducing the state's phosphorous contributions to the Red River, and to Canada's Lake Winnipeg.
The Thief River begins its course in Marshall County at Thief Lake, flowing south/southwest to converge with the Red Lake River.
The Upper Red River of the North Watershed drains an area of 371,689 acres in the Glacial Lake Agassiz Plain, while the extreme southeastern portion of the basin lies in the North Central Hardwoods ecoregion. The Red River begins its course just below Breckenridge, Minn.
The Des Moines River - Headwaters Watershed is located in southwestern Minnesota and covers approximately 1,334 square miles, including parts of Lyon, Pipestone, Murray, Cottonwood, Nobles, Jackson, and Martin counties.
Waterways in the northeastern part of the state are generally in better condition than those in the southern, central, and western regions.