Port of Huntington Tri-State
Included in the port's area is 100 miles of the Ohio River from the mouth of the Scioto River in Portsmouth , Ohio to the northern border of Gallia County , Ohio , 9 miles of the Big Sandy River , and 90 miles of the Kanawha River . 
<triplet> Ohio River <subj> Scioto River <obj> tributary <triplet> Scioto River <subj> Ohio River <obj> mouth of the watercourse <triplet> Big Sandy River <subj> Ohio River <obj> mouth of the watercourse <triplet> Kanawha River <subj> Ohio River <obj> mouth of the watercourse