46 C.F.R. § 7.155
Cape Spencer, AK to Cape St. Elias, AK
(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.