80.710—Charleston Harbor, SC.
(a)
A line formed by the submerged north jetty from the shore to the west end of the north jetty.
(b)
A line drawn from across the seaward extremity of the Charleston Harbor Jetties.
(c)
A line drawn from the west end of the South Jetty across the South Entrance to Charleston Harbor to shore on a line formed by the submerged south jetty.