These outdoor gems, all open and free to the public, are among the state's most striking natural wonders.

Read more about each location by clicking on the dots on the map. See the alphabetical list.

A number of Ohio's scenic caves, caverns and rock formations are on privately owned property, but open to the public at a nominal fee. See the list of additional sites.

For more information, also visit: Ohio Historical Society
Ohio Bicentennial Commission