A major challenge to bedrock mineral exploration in many parts of South Australia is the need to be able to explore efficiently and effectively through extensive and thick regolith. Understanding and mapping regolith distribution and composition can be a very cost-efficient and powerful exploration tool. The Geological Survey of South Australia has recently compiled a seamless statewide 1:2 million scale regolith map of South Australia and an accompanying detailed GIS dataset that portrays regolith materials, as well as landforms and regolith overprints (induration, lag). The regolith map aims to provide a statewide representation of regolith materials and landforms and thus presents a broad-scale framework for guiding geochemical prospecting for a wide range of minerals both beneath and within the regolith, as well as addressing land use, groundwater and other environmental issues.