79Appendix EMap DatumsAdindan Adindan- Ethiopia, Mali, Senegal, SudanAfgooye Afgooye- SomaliaAIN EL ABD ‘70 AIN EL ANBD 1970- Bahrain Island, SaudiArabiaAnna 1 Ast ‘65 Anna 1 Astro ‘65- Cocos I.ARC 1950 ARC 1950- Botswana, Lesotho, Malawi,Swaziland, Zaire, Zambia, ZimbabweARC 1960 Kenya, TanzaniaAscnsn Isld ‘58 Ascension Island ‘58- Ascension IslandAstro B4 Sorol Sorol Atoll- Tern IslandAstro Bcn “E” Astro Beacon “E”- Iwo JimaAstro Dos 71/4 Astro Dos 71/4- St. HelenaAstr Stn ‘52 Astronomic Stn ‘52- Marcus IslandAus Geod ‘66 Australian Geod ‘66- Australia, TasmaniaIslandAus Geod ‘84 Australian Geod ‘84- Australia, TasmaniaIslandAustria AustriaBellevue (IGN) Efate and Erromango IslandsBermuda 1957 Bermuda 1957- Bermuda IslandsBogata Observ Bogata Obsrvatry- ColombiaCampo Inchspe Campo Inchauspe- ArgentinaCanton Ast ‘66 Canton Astro 1966- Phoenix IslandsCape Cape- South AfricaCape Canavrl Cape Canaveral- Florida, Bahama IslandsCarthage Carthage- TunisiaCH-1903 CH 1903- SwitzerlandChatham 1971 Chatham 1971- Chatham Island(New Zealand)Chua Astro Chua Astro- ParaguayCroatia CroatiaCorrego Alegr Corrego Alegre- BrazilDjakarta Djakarta (Batavia)- Sumatra Island(Indonesia)Dos 1968 Dos 1968- Gizo Island(New Georgia Islands)Dutch DutchEaster Isld 67 Easter Island 1967European 1950 European 1950- Austria, Belgium, Denmark,Finland, France, Germany, Gibraltar, Greece,Italy, Luxembourg, Netherlands, Norway,Portugal, Spain, Sweden, SwitzerlandEuropean 1979 European 1979- Austria, Finland,Netherlands, Norway, Spain, Sweden,SwitzerlandFinland Hayfrd Finland Hayford- FinlandGandajika Base Gandajika Base- Republic of MaldivesGDA Geocentric Datum of AustraliaGeod Datm ‘49 Geodetic Datum ‘49-New ZealandGuam 1963 Guam 1963- Guam IslandGux 1 Astro Guadalcanal IslandHjorsey 1955 Hjorsey 1955- IcelandHong Kong ‘63 Hong KongHu-Tzu-Shan TaiwanIndian Bngldsh Indian- Bangladesh, India, NepalIndian Thailand Indian- Thailand, VietnamIndonesia 74 Indonesia 1974-IndonesiaIreland 1965 Ireland 1965- IrelandISTS 073 Astro ISTS 073 ASTRO ‘69- Diego GarciaThe GPSMAP’s built-in world-wide database includescoverage down to 20 n.m. (30 km). Note that the GPSMAP182/182C/232 basemap is valid to 75º north and 60º southof latitude.)The ‘User’ datum is based on a WGS-84 Local datum and isan advanced feature for unlisted or custom datums. To learnmore, check your local library or on the world wide web foreducational materials on datums and coordinate systems.)