Subregions of Minnesota
2nd Level Hydrologic Unit (HU) / 4-digit Hydrologic Unit Code (HUC)
Go back to Regions (HU Level 1) of the United States
Go forward to Basins (HU Level 3) of Minnesota
Go back to Regions (HU Level 1) of the United States
Go forward to Basins (HU Level 3) of Minnesota
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MN Department of Natural Resources
