Engineering Fact Sheets

• Delineation of 10- and 12-Digit Hydrologic Unit Boundaries (DOC; SD-FS-54) (141 KB)
          (Figure 1) 12-Digit Hydrological Unit Map of South Dakota (PDF; 589 KB)
          (Figure 2) 2008 Provisional Certified Hydrologic Unit Codes Map (PDF; 1,034 KB)

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