![]() ![]() The period from 1965 to the close of the 1980s saw a very large effort devoted to the completion of basic scale mapping of the continent, Australia being the last inhabited continent to be mapped to modern standards. Official mapping relates to the Australian Geodetic Datum 1984, but moves are in hand to change to the Geocentric Datum of Australia (GDA) as the reference datum for all spatial data and map products. After that date federal and state maps have all been produced on the UTM projection with the Australian Map Grid, and since 1973 all major producers have adopted metric standards. Until 1950 there was very little national coordination between the different state surveys. Responsibility for the topographic and cadastral survey of Australia is divided between federal and state government agencies. ![]()
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