Ohio Rev. Code § 1519.01
The director of natural resources shall plan and administer a state system of recreational trails for hiking, bicycling, horseback riding, ski touring, canoeing, and other nonmotorized forms of recreational travel. The system may interconnect state parks, forests, wildlife areas, nature preserves, scenic rivers, and other places of scenic or historic interest to the maximum practicable extent. It shall provide circuit trails for day use and access trails wherever possible. The director may, by the adoption of rules in accordance with Chapter 119. of the Revised Code, restrict uses of the trails to insure user safety, prevent damage to the trail routes, and prevent conflicting uses. As used in this chapter, "state trail" means any trail acquired by the director, or trail established or maintained pursuant to an agreement, under section 1519.02 of the Revised Code, and any other trail on lands under his jurisdiction that he designates as a state trail by entry in his journal. Any person who owns land along a state trail may use or authorize use of motorized vehicles across the trail for purposes incident to ownership and management of his land.
R.C. §1519.01