Ohio · river

Great Miami River

The Great Miami River (also called the Miami River) (Shawnee: Msimiyamithiipi) is a tributary of the Ohio River, approximately 160 miles (260 km) long, in southwestern Ohio and Indiana in the United States. The Great Miami originates at the man-made Indian Lake and flows south through the cities of Sidney, Piqua, Troy, Dayton, Middletown and Hamilton. From Wikipedia

Flow now

Great Miami River at Dayton OH, 3 mi from the river.

895cfsat build, Nov 12, 11 AM MT

06601,320Oct 12Nov 11

The typical week here, from 10 years of record: 476 cfs to 1,320 cfs, around 598 cfs.

Also gauged at Wolf Creek at Dayton OH: 38 cfs, Nov 12.

The season, November

Usually workable this week. Pick your window and fish it well.

  • Midgessizes 18 to 22
  • Small eggs and worms
  • Pheasant tail and zebra midge nymphsunder an indicator

Typical for the week over 10 years: 476 to 1,320 cfs. Running 895 cfs today, inside that range. Flows are not forecast; check the gauge the day before.

Brown Trout are spawning (October to December). Stay off clean, light-coloured gravel in riffle tails and pool tailouts, and leave paired fish alone.

Brook Trout are spawning (September to November). Stay off clean, light-coloured gravel in riffle tails and pool tailouts, and leave paired fish alone.

Mountain Whitefish are spawning (October to December). The egg bite behind spawning whitefish is the best winter nymphing of the year: an egg pattern below the riffles.

  • Flows swing a lot this week most years. Carry both a heavy nymph rig and a dry-dropper and let the gauge decide.
  • Egg patterns in the runs below the spawning gravel, never on it.

Written by the app's rules engine from the calendar, the gauge record and the snowpack, not by hand, so it says only what the data says. The weather for the week comes with the app.

Fly shops on this water

  • Little Miami River Outfitters CincinnatiWebsite

Nearby waters

Every Ohio water

Open Great Miami River in FlyMaster for today's plan, the flies, and your own log here.

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Flows from the U.S. Geological Survey, snowpack from the NRCS SNOTEL network, text from Wikipedia (CC BY-SA 4.0). Built Nov 12.