S.C. Code § 4-3-470
Saluda County is bounded by a line beginning at the center of Big Saluda River at a point opposite the corner of Edgefield and Lexington Counties; thence the old Edgefield and Lexington line to the corner of Lexington and Aiken Counties; thence the old Edgefield and Aiken line to a point three miles north of where the public road crosses said line near Lybrand's old mill; thence a straight line to ten-mile post on public highway leading from Edgefield to Columbia, near the present or former residence of J. W. L. Bartley; thence a straight line to the junction of the public road leading from Pleasant Cross with the Long Cane road near the present or former residence of William Lott; thence by the Long Cane road to Matt Mathis' crossroads; thence a straight line to Owdom's Postoffice; thence a straight line to Little Red Hill schoolhouse near Dr. Landrum's old place; thence a straight line to a point on the northwestern line of Pine Grove township, one mile north of Double Bridges; thence along the northwestern boundary of Pine Grove township to the point on the old Charleston and Cambridge road, where it crosses Halfway Swamp Creek; thence down the middle of Halfway Swamp Creek to a point in the middle of Saluda River opposite the mouth of said creek; thence down the middle of Big Saluda River to the initial point.
S.C. Code § 4-3-470