North Carolina General Statutes Chapter 141. State Boundaries § 141-7.1. Southern lateral seaward boundary

The lateral seaward boundary between North Carolina and South Carolina from the low-water mark of the Atlantic Ocean shall be and is hereby designated as a continuation of the North Carolina-South Carolina boundary line as described by monuments located at Latitude 33° 51′ 50.7214″ North, Longitude 78° 33′ 22.9448″ West, at Latitude 33° 51′ 36.4626″ North, Longitude 78° 33′ 06.1937″ West, and at Latitude 33° 51′ 07.8792″ North, Longitude 78° 32′ 32.6210″ West, in a straight line projection of said line to the seaward limits of the States' territorial jurisdiction, such line to be extended on the same bearing insofar as a need for further delimitation may arise.