HUC-8
Water that falls and flows through Steuben County eventually drains into the Great Lakes Basin through one of two Hydrologic Unit Code (HUC – 8) watersheds, which are called Major Watersheds. These two watersheds have then been divided into HUC-10 watersheds, or Primary Watersheds.
The Western Lake Erie (east), indicated by the blue outline area, flows through Fort Wayne, IN on its way to drain into Lake Erie.
The Southeastern Lake Michigan (west), indicated in the pink outline area, flows through South Bend, IN on its way to drain into Lake Michigan.