Miami River Ohio Map

The Great Miami River is a tributary of the Ohio River, approximately 160 miles 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.
  • Country: United States
  • State: Ohio, Indiana
  • Counties: Logan, Shelby, Miami, Montgomery, Warren, Butler, Hamilton in Ohio; Dearborn in Indiana
  • Length: 170 miles (270 km)
  • Basin size: 5,373 sq mi (13,920 km²)
Data from: en.wikipedia.org