Appalachian Ohio
Areas south and east of the moraine are characterized by rough , irregular hills and hollows , characteristic of the Allegheny Plateau and Cumberland Plateaus of the western Appalachian Plateau System . 
<triplet> Allegheny Plateau <subj> Appalachian Plateau <obj> part of <triplet> Cumberland Plateau <subj> Appalachian Plateau <obj> part of <triplet> Appalachian Plateau <subj> Allegheny Plateau <obj> has part