(a) A line drawn from the westernmost extremity of Harbor Point to the southernmost extremity of LaChaussee Spit at Lituya Bay.

(b) A line drawn from Ocean Cape Light to latitude 59°31.9? N. longitude 139°57.1? W. (Yakutat Bay Entrance Lighted Whistle Buoy “2”); thence to the southeasternmost extremity of Point Manby.

(c) A line drawn from the northernmost extremity of Point Riou to the easternmost extremity of Icy Cape.