80.520—Cape Hatteras, NC to Cape Lookout, NC.
(a)
A line drawn from Hatteras Inlet Lookout Tower at latitude 35°11.8′ N. longitude 75°44.9′ W. 255° true to the eastern end of Ocracoke Island.
(b)
A line drawn from the westernmost extremity of Ocracoke Island at latitude 35°04.0′ N. longitude 76°00.8′ W. to the northeastern extremity of Portsmouth Island at latitude 35°03.7′ N. longitude 76°02.3′ W.