20250520 13245600 1.0 TRUE ArcGIS Metadata 1.0 Groundwater Contours Inferred regional groundwater contours for the formations of the Nulla Basalt and McBride Basalt Provinces. An interpreted product based on locations of springs and gaining streams, surface topography, and water level readings at bores from February to March 2019. Groundwater Contours © Commonwealth of Australia (Geoscience Australia) 2020. This product is released under the Creative Commons Attribution 4.0 International Licence. http://creativecommons.org/licenses/by/4.0/legalcode Australia web service Upper Burdekin Nulla Basalt Province McBride Basalt Province hydrogeology regional groundwater characterisation EFTF Exploring for the Future Australia web service Upper Burdekin Nulla Basalt Province McBride Basalt Province hydrogeology regional groundwater characterisation EFTF Exploring for the Future