20260810 16590800 1.0 TRUE Bathymetry Custom Dataset – Bathymetry is a hypsometric polygon representation of bathymetric data used to provide a background layer around Australia for this web service. Derived from the Geoscience Australia 2.5 Million General Reference Map (Edition 7, 2011) bathymetric areas layer. Activated at all scales. © Commonwealth of Australia (Geoscience Australia) 2016. Creative Commons Attribution 4.0 International Licence.