WATERSHED HUC06 --
Watersheds - 6-Digit Hydrologic Units, 1991 (1:24,000)
Shows the boundaries of 6-digit hydrologic accounting units. Actual hydrologic units often extend beyond state and county boundaries. Created by dissolving the Digital Dataset of 14-digit hydrologic units in Indiana created by the U.S. Geological Survey and Natural Resources Conservation Service.
FGDC metadata: WATERSHEDS_HUC06_USGS_IN