2025 Data for the Lower Great Miami Watershed

The map below breaks the lower Great Miami River watershed into its constituent watersheds. Click on the watershed symbol/name to open its data page.

• See 2025 data for water recreation sites on the Great Miami (Heritage Park), Whitewater (Green Acres Kayak), Dry Fork Creek ( Miami Whitewater Forest), and Ohio River (Lawrenceburg).
• Learn more about pulse flows, nutrient loading and eutrophication.
• Find out how YOU can improve stream water quality.