Section 80.830 - Mississippi Passes, LA to Point Au Fer, LA(a) A line drawn from the seaward extremity of the Southwest Pass West Jetty located at coordinate latitude 28°54.5' N., longitude 89°26.1' W.; thence following the general trend of the seaward, highwater jetty and shoreline in a north, northeasterly direction to Old Tower latitude 28°58.8' N., longitude 89°23.3' W.; thence to westernmost point near Pass du Bois; thence to coordinate latitude 29°05.2' N., longitude 89°24.3' W.; thence a curved line following the general trend of the highwater shoreline to Point Au Fer Island except as otherwise described in this section.(b) A line drawn across the seaward extremity of the Empire Waterway (Bayou Fontanelle) entrance jetties.(c) An east-west line drawn from the westernmost extremity of Grand Terre Islands in the direction of 194° true to the Grand Isle Fishing Jetty Light.(d) A line drawn between the seaward extremity of the Belle Pass Jetties.(e) A line drawn from the westernmost extremity of the Timbalier Island to the easternmost extremity of Isles Dernieres.(f) A south-north line drawn from Caillou Bay Light 13 across Caillou Boca.(g) A line drawn 107° true from Caillou Bay Boat Landing Light across the entrances to Grand Bayou du Large and Bayou Grand Caillou.(h) A line drawn on an axis of 103° true through Taylors Bayou Entrance Light 2 across the entrances to Jack Stout Bayou, Taylors Bayou, Pelican Pass, and Bayou de West.CGD 77-118a, 42 FR 35784, July 11, 1977. Redesignated by CGD 81-017, 46 FR 28154, May 26, 1981, as amended by CGD 84-091, 51 FR 7787, Mar. 6, 1986; USCG-2013-0397, 78 FR 39172 , July 1, 2013