found: Columbia gaz. of No. Amer., via WWW, Nov. 5, 2002(Gravina Islands, part of Alexander Archipelago, SE Alaska, bet. Clarence Strait (W) and Revillagigedo Channel (E), S of Ketchikan. Largest isls. (N-S) are Gravina, Annette, and Duke. Largest settlement is Metlakatla on Annette Isl.)
found: GNIS, Nov. 5, 2002(Gravina Islands, island, between Clarence Strait and Revillagigedo Channel, include Annette, Duke, Gravina, and Mary Is., Alex. Arch., Prince of Wales-Outer Ketchikan (CA), variant name: Isla de Gravina, 55⁰10ʹ00ʺN 131⁰35ʹ00ʺW. Named Isle de Gravina, referring to present-day Gravina and Annette Islands, by Don Jacinto Caamano in 1792. The application of the name has since been extended. See Gravina Island.)