1. Map of Alaska : showing latest explorations by U.S. Geological Survey and U.S. Coast and Geodetic Survey Maps University Of Minnesota Public content 1914. National Geographic Society (U.S.). Cartographic Division. Inset: Western extension of Aleutian Islands; l:7,500,000.; Supplement to February, 1914 issue of The National Geographic Magazine.; "The Matthews-... The Society (Washington, D.C).