National Coastal Catchments (NGSA)

Boundaries of named Australian coastal catchments derived from Geoscience Australia's National Geochemical Survey of Australia (NGSA), showing land areas draining towards coastal waterways and the marine environment. Originally delineated for geochemical sampling, the catchments represent broad drainage areas, with catchments smaller than 1,000 km² excluded.

Data and resources

Additional information

Statuscompleted
Update frequencyasNeeded
Metadata languageen
LicenseCreative Commons Attribution 4.0
Source metadataISO 19115 XML
Last updated2026-11-05
Created2026-11-05
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