S.C. Code § 4-3-420
Oconee County is bounded as follows: on the north by the North Carolina line; on the east by Pickens County from which it is separated by a line beginning in the middle of Seneca River, where Ravenel's Bridge is located over said river (Survey Station No. 1, being the center-width and length of said bridge) thence S. 78° 10' E. 17.60 chains to corner, S. 37.5° E. 6.48 chains to corner, S. 64° 20' E. 4.92 chains to corner, N. 75° E. 8.06 chains to corner, S. 87° 35' E. 23.78 chains then the following courses and distances: S. 83° E. 9.16 chains, S. 72° 10' E. 6.00 chains, S. 54.75° E. 6.08 chains, S. 38.75° E. 1.43 chains, S. 31° E. 10.53 chains, to stone on east side of road near Agricultural Hall, thence S. 72° 50' E. 5.10 chains to corner, N. 85° 25' E. 20.17 chains to corner, N. 89° E. 15.13 chains to corner, N. 84° E. 9.13 chains, S. 76° E. 14.40 chains, S. 61° E. 4.86 chains, S. 33.5° E. 11.86 chains, S. 50° 20' E. 34.96 chains, S. 56.5° E. 21.15 chains, S. 62.25° E. 8.86 chains, S. 43.5° E. 11.44 chains, S. 37° E. 18.45 chains, S. 64.25° E. 19.40 chains, to corner in center of top-soil highway on the Anderson County line. Said corner being N. 65.5° W. 4.81 chains from the northwest corner of cement bridge over Eighteen Mile Creek. It is the intent of this section to establish the new top-soil highway as the boundary of Pickens and Oconee Counties. It is bounded on the south by Anderson County, from which it is separated by a line, commencing at the mouth of Cane Creek on Tugaloo River and running thence along the line which originally separated Anderson and Pickens districts to its point of intersection with the public road leading from Ravenel's Bridge to Pendleton Village; on the west and northwest by the state of Georgia, from which it is separated by the Tugaloo and Chatooga Rivers.
S.C. Code § 4-3-420