A comprehensive review of mineral deposits and their geological setting is presented to guide planning decisions relating to the mineral industry. The report also provides basic geological, data and literature references useful to mineral exploration groups. Gypsum and limesand, both of Quaternary age, are the major mineral deposits being exploited in the area. Enormous reserves of high grade material are available at Lake MacDonnell, Coffin Bay and in other deposits of lower grade. Few suitable surface water storage sites exist and groundwater, which occurs in large quantities in a number of Tertiary - Quaternary basins, is the main source of water supply. Extensive exploration of both surface and concealed iron formation has defined large reserves of low grade magnetite ore at Warramboo and other localities. Preliminary testing has shown beneficiation to be feasible. Quartz-kaolin rocks, a product of intense surface leaching in the Tertiary, are widespread and are a potential future source of aluminium and possibly paper clays. Deposits near Kimba and Tumby Bay have been investigated. High grade talc, impregnated with jasper, occurs near Tumby Bay and could provide a moderate tonnage of talc suitable for most industrial uses if a beneficiation process is developed. Outcropping basemetal, uranium and molybdenumtungsten deposits in the basement have been thoroughly tested during several phases of exploration without locating viable deposits or revealing significant targets for further testing. However much of the basement is concealed by younger cover and these areas remain unexplored. Carbonaceous sands of Tertiary and in one case Jurassic age flank the hinterland containing minor primary uranium mineralisation. Only one small area has been tested for sedimentary uranium, and anomalous but non-economic uranium values were detected at the base of the oxidised zone. The possibility of sedimentary uranium exists in large areas which are untested. Graphitic schists occur frequently in-the basement sequence, and two deposits were successfully worked to provide internal needs during World War II. Marine sediments of Permian, Mesozoic and Tertiary age underlie the Eucla Basin and extend offshore in the Great Australian Bight. Hydrocarbon potential is currently being examined. High quality coarse aggregate is confined to areas of basement outcrop and useful deposits are restricted because of surface weathering and unsuitable rock type. Calcrete limestone is the only material available over a large part, of the planning area. Minor occurrences of dolomite, magnesite, whiting, asbestos, ornamental stone and lignite are recorded. General aspects of land use related to mineral deposits are discussed.