extend 1,100 ft. in Portillo Channel, on NW coast of San Fernando I.; Alex. Arch.
named in 1923 by U.S. Coast and Geodetic Survey (USC&GS). Spanish "alagar," meaning "to sheer off"; Baker (1906, p. 568) published the name "Sheer-off-there Rock." "Alargate Alla," meaning "give this a wide berth," was published next to this feature on maps of the 1779 expedition of Ignacio Arteaga (Wagner, 1937, p. 373). made by the navigator Francisco Antonio Maurelle.
Balandra Shoal, Beta Rock, Curacao Reef, Desconocida Reef, Fern Reef, Kabanof Rocks, Larzatita Island Reef, Moke Rock, Parida Island Reef, Rana Reef, Saint Ignace Rock, San Christoval Rock, Sucia Ledge,
Port San Antonio, Port Asumcion, Port Dolores, Port Estrella, Port Mayoral, Port San Antonio, Adrian Cove, Aguirre Bay, Anguilla Bay, Bucareli Bay, Fortaleza Bay, Garcia Cove, Gulf of Esquibel, Kelly Cove, Nagasay Cove, Nossuk Bay, Salt Lake Bay, San Alberto Bay, Siketi Sound, Steamboat Bay, Thimble Cove, Veta Bay,
Point Marabilla, Point Maria, Point Miliflores, Point Polocano, Point Providence, Point Quemada, Point Remedios, Point Saint Boniface, Point Saint Isidor, Point Saint Thomas, Point Caponeta, Point San Francisco, Point San Leonardo, Point San Pasqual, Point San Rafael, Point San Roque, Point Santa Gertrudis, Point Santa Lucia, Point Santa Rosa, Point Santa Rosalia, Point Santa Theresa, Point Aguirre, Point Alonzo, Point Amargura, Point Animas, Point Arboleda, Point Arucenas, Point Barrigon, Point Cangrejo, Point Capones, Point Caracol, Point Cocos, Point Cosinas, Point Cuerbo, Point Delgada, Point Desconocida, Point Espada, Point Eugenia, Point Falfan, Point Fula, Point Garcia, Point Gorda, Point Ildefonso, Point Incarnation, Agueda Point, Amarilla Point, Arrecife Point, Arrecite Point, Bay Point, Blanquizal Point, Bobs Point, Canal Point, Cape Cambon, Cape Empinado, Cape Flores, Diamond Point, Fern Point, Mineral Point, Palisade Point, Pepper Point, Punishment Point, Punta de los Almos, Punta Maria Antonia, Punta Noriega, Punta Palmito, Reef Point, Siketi Point, Silvester Point, Snail Point, Steamboat Point, Sword Point, Triste Point, Point Verde, Veta Point,
Abrejo Rocks, Alargate Rocks, Anguilla Island, Animas Island, Arboles Island, Baker Island, Bibora Island, Bushtop Island, Cabras Islands, Caracol Island, Catalina Island, Cone Island, Coposo Island, Cristina Island, Cruz Islands, Culebra Islands, East San Lorenzo Island, Escurial Island, Esquibel Island, Flotilla Island, Garcia Island, Garita Rock, Hacha Island, Hermagos Islands, Hermanos Islands, Isleta, Joe Island, Larzatita Island, Lulu Island, Marabilla Island, Muerta Island, Palisade Island, Parida Island, Phillips Rock, Piedras Island, Pigeon Island, Pine Island, Quitasueno Rock, Rosary Island, Saint Ignace Island, Saint Philip Island, San Adrian Island, San Clemente Island, San Fernando Island, San Francisco Island, San Juan Bautista Island, San Juanito Island, San Lorenzo Islands, Santa Lucia Island, Santa Rita Island, Shaft Rock, Sola Rock, Sombrero Island, Sonora Island, Tonina Island, Toza Island, Trasera Island, Triste Island, Tuft Rock, Turtle Island, Twocrack Island, Ubi Island, West San Lorenzo Island, The Witnesses,