Ohio · Hamilton / Butler / Montgomery Co.

Great Miami River

Hamilton / Butler / Montgomery Co. · 170 mi · Class I–II
Optimal: 300–2500 CFS · USGS #03274000
Water temp: 63°F
2,800 avg
2,220CFS
63.42 ft gauge height
Optimal
→Stable
⚡Flow data is live from USGS·Rapid classifications and CFS ranges need community verification·Know this river?
Avg flow: 2,800 cfsHist. median: 2,520 cfsUSGS #03274000
Miami Conservancy District · Great Miami Water Trail · Ohio Stocked Muskellunge Water

The Great Miami River flows 170 miles from Indian Lake through Dayton and the Miami Valley to the Ohio River near Cincinnati, delivering one of the best smallmouth bass and muskellunge fisheries in the Midwest. The river is a centerpiece of the Miami Conservancy District flood-control system — one of the first and most successful engineered flood-control projects in the country, built after the devastating 1913 Great Dayton Flood. Today the lower river around Cincinnati is stocked with muskies that exceed 50 inches, and the middle river through Dayton is a year-round urban smallmouth destination.

Outfitters
Whitewater Warehouse
Great Miami River kayak rentals and Dayton smallmouth guides
10-Year Flow Patterns
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Data Quality

River conditions are community-verified. CFS ranges, difficulty ratings, and access points may not reflect every flow level or seasonal change. Always check current conditions, scout unfamiliar rapids, and paddle within your skill level.

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