What is a Watershed?
A watershed is an area of land that drains into a water body. A watershed can be as small as an area that drains into a small stream or creek, or a very large area that drains into the Mississippi or Missouri Rivers. Management of the land within a watershed can have a great impact on water quality. Watersheds are identified by Hydrologic Unit Codes (HUC), as the HUC number increases, the size of the watershed decreases.
Iowa Hydrologic Unit Code (HUC) 6 Watersheds
Iowa Hydrologic Unit Code (HUC) 8 Watersheds
Iowa Hydrologic Unit Code (HUC) 12 Watersheds
