Ohio County
Counties: Ohio County
Ohio County is in southeast Indiana. It is bounded on the north by Dearborn County, on the south by Switzerland County, and on the east by Kentucky.
Natural Areas
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Organizations
Indiana Native Plant Society - South Central Chapter
Watersheds

Ohio County Watersheds
Click to enlarge
Red lines on the map depict the boundaries of 8-digit hydrologic units (one convenient definition of a watershed) as shown on this 1974 United States Geological Survey Map.
All of Ohio County drains into the Middle Ohio-Laughery 8-digit hydrologic unit.