National Geodetic Data Base [NGDB]

The National Geodetic Data Base (NGDB) is a national archive of more than 25,000 geodetic survey marks of national interest in Australia and it's external territories (including Antarctica). The database contains positions in terms of a number of datums and coordinate systems of national interest and historical importance.

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Need to find coordinates?
Want to know what control is available in your area?

Geoscience Australia, is responsible for the National Geodetic Data Base. State and Territory authorities maintain their own data bases of current survey control which may contain information not held in the NGDB. Depending on individual resources and policies, the data may be available on-line, or metadata may indicate what is available and how to obtain it.

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Data available in all States

• Geoscience Australia, Geodesy Program
• ACT (Survey Control Marks)
• New South Wales (SCIMS)
• Queensland
• South Australia
• Tasmania
• Victoria (SMES)
• Western Australia
• New Zealand
• Northern Territory

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NGDB data and available reports may include:

• Up to three station names
• Datum (eg GDA94, AGD84, AGD66 and others as available)
• Geographical Coordinates - Latitude & Longitude
• UTM or Cartesian Coordinates (MGA or AMG)
• Positional Uncertainty (accuracy) of the coordinates
• Height referred to the Australian Height Datum (AHD)
• Class & order of the height
• Method used to determine the height
• Description of the station mark & beacon
• Station Diagrams and other information may also be available.

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