S.C. Code § 4-3-490
Sumter County is bounded as follows: on the north by Kershaw, Lee and Florence Counties; on the east by Florence County; on the south by Clarendon County, from which it is separated by the northwestern line of Clarendon County mentioned in Section 4-3-140 defining boundaries of Clarendon County; on the west by the Santee River, which separates it from Richland County; on the northwest by Kershaw County, from which it is separated by a line running up Raglin's Gut to Big Swift Creek and in addition the following territory transferred from Clarendon County by act of the General Assembly, approved March 7 1921, to wit: commencing at a point on the Sumter County line and running due south 1.42 miles to an oak at the intersection of the public road leading from Paxville to Pinewood with the road leading from Paxville to Broadways siding; then S. 9° 30' E. 1.52 miles to the center of the Curtis Mill dam; then S. 1° 20' E. 2.36 miles to the intersection of the run of Hungary Hall Branch with the run of Des Champs Branch; then following the run of Des Champs Branch to the intersection of said run with the public road leading from Panola to Calvary Church; then S. 78° 2.93 miles to intersection with the line of School District No. 1; then S. 2° 30' W. 2.49 miles to intersection with the boundary between Big Home, Hickory Hill and Elmwood plantation or to intersection with a projection of said boundary line; then S. 39° W. 4000 feet, then N. 47° W. 817 feet; then in a southwest direction to Santee River; then in a northwest direction up the Santee River to a point where the same intersects the Sumter County line, then eastwardly along the Sumter line to the beginning point. The metes and bounds and location and lines are more accurately set forth on plat bearing date July 16 1920, made by Theodore C. Hamby, William Weston and Lindley Arthur, filed in the office of the Secretary of State. The territory to be taken from Clarendon County to be added to and to be incorporated into Sumter County contains, by actual survey, 93.50 square miles; less, however, that territory transferred to Clarendon County by act approved March 11 1922, to wit: all that certain territory or portion of Sumter County embraced within the following lines and boundaries, to wit: beginning at a point on Santee River 72 feet northwest of the center of the Atlantic Coast Line Railroad running from Sumter to Orangeburg, running N. 46° 50' E. for a distance of 9521 feet parallel to railroad; thence N. 41° 2' E. for a distance 5658 feet to a point 72 feet west of center of railroad; thence N. 16° E. for a distance of 7257 feet, parallel to railroad; thence N. 26° 50' E. for a distance of 8650 feet to a point 72 feet northwest of railroad; thence S. 87° E. for a distance of 6864 feet; thence N. 12° 30' E. for a distance of 8840 feet; thence N. 87° 30' E. for a distance of 5920 feet; thence S. 15° 30' E. for a distance of 5430 feet; thence S. 65° W. for a distance of 2370 feet; thence S. 9° W. for a distance of 3432 feet; thence N. 85° E. for a distance of 13200 feet; thence S. 1° 20' E. for a distance of 10479 feet to the intersection of Hungary Hall Branch and Des Champs Branch; thence up the run of Des Champs Branch in a southwesterly direction to the public road; thence S. 78° W. for a distance of 16390 feet; thence S. 2° 30' W. for a distance of 13200 feet; thence S. 39° W. for a distance of 4000 feet; thence N. 47° W. for a distance of 817 feet; thence S. 42° W. for a distance of 2248 feet; thence S. 40° W. for a distance of 2280 feet; thence S. 37° 30' W. for a distance of 13268 feet to a point on Santee River; thence up Santee River to the beginning point 72 feet northwest of railroad.
S.C. Code § 4-3-490