http://www.buckeyetrail.org/

"For nearly 1444 miles, the Buckeye Trail winds around Ohio, reaching into every corner of the state. From a beachhead on Lake Erie near Cleveland, to a hilltop overlooking the Ohio River in Cincinnati, a hiker can experience a little of all that Ohio has to offer.

http://www.upnorthtrails.org/trails/high-country-pathway.html

"The Knobstone Trail is Indiana’s longest natural surface foot path.  It is a popular backcountry trail that runs along high ridges which offer great views across the wooded hills of southern Indiana, and on clear days, even glimpses of Louisville and the Ohio River. The Indiana DNR manages and maintains the trail, with occasional assistance from a variety of volunteer groups, including the HHC." https://www.hoosierhikerscouncil.org/knobstone-trail/