What river flows just south of cincinnati,Ohio?
http://www.lonelyplanet.com/maps/north-america/usa/cincinnati/
The river that flows just south of Cincinnati, Ohio is the Ohio River. To find the answer to this question, you can use various methods. One way is to use an online map service such as Google Maps or Bing Maps. By searching for Cincinnati, Ohio and zooming in on the area, you can easily identify that the Ohio River runs along the southern border of the city. Additionally, you can consult a physical map or an atlas to locate the Ohio River in relation to Cincinnati, Ohio.
Check this map.
http://www.lib.utexas.edu/maps/world_cities/cincinnati.jpg