Ohio Rev. Code Ann. § 1513.372
(A) As used in this section:
(1) "Abandoned mine land" means land or water resources adversely affected by coal mining practices to which one of the following applies:
(B) Except as provided in divisions (C) and (D) of this section, an eligible landowner or nonprofit organization is immune from liability as follows:
(D) The immunity established in division (B) of this section does not apply in both of the following circumstances: