Approximately 530,000 South Australian gravity stations of variable spacing have been gridded using a new methodology that combines Geographic Information System (GIS) geoprocessing methods and minimum curvature interpolation to optimise and control an iterative interpolation process. The resulting grid, with a cell size of 100 m, is free of gridding and survey boundary artefacts found in previous versions of the South Australian state-wide gravity grid. The supervised variable density method provides a systematic approach to optimally gridding regional ground gravity data of variable density and distribution, providing seamless regional or continental scale gravity products that support geological interpretation, modelling and quantitative analysis. This has been superseded by 'South Australian regional gravity grids and data, 2023'