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Hydrogeological Atlas of the Great Artesian Basin.

Created 17/10/2025

Updated 17/10/2025

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The Great Artesian Basin (GAB) is one of Australia's most significant hydrogeological entities covering more than 1.7 million square kilometres, underlying parts of Queensland, New South Wales, South Australia and the Northern Territory. The GAB contains a vast volume of underground water (estimated at 64,900 million megalitres) and is the largest groundwater basin in Australia. Groundwater resources in the GAB are used to support the pastoral, agricultural, and resource sectors as well as supplying water to inland communities. Properly managing these groundwater resources, often for competing interests, requires an understanding of how the groundwater system works at a regional scale. This atlas presents a compilation of maps documenting some of the key regional geological, hydrogeological and hydrochemical aspects of the GAB. It provides insights into the current understanding of the regional geometry and physical characteristics of the rocks and water contained within this vast groundwater basin and baseline information against which future changes can be assessed.

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Additional Info

Field Value
Title Hydrogeological Atlas of the Great Artesian Basin.
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/en/dataset/b99ade8d-6c8d-4af3-9f37-9b83a2daa1bd
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 20/04/2018
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        130.0,
        -35.0
      ],
      [
        153.0,
        -35.0
      ],
      [
        153.0,
        -10.0
      ],
      [
        130.0,
        -10.0
      ],
      [
        130.0,
        -35.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "Hydrogeological Atlas of the Great Artesian Basin.". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/hydrogeological-atlas-of-the-great-artesian-basin