An area located on the northern Stuart Shelf between Olympic Dam and Prominent Hill, approx. 50 km south-southwest of the latter, has been explored for possible Olympic Dam type iron oxide - associated copper-gold (IOCG) deposits and for Canadian Athabasca Basin type, buried Mesoproterozoic unconformity style uranium mineralisation. The licence straddles the northern margin of the Gawler Range Volcanics Domain, in a region where crystalline basement rocks are concealed by a sequence of Phanerozoic and Neoproterozoic to Mesoproterozoic sediments ranging from less than 300 m thick in the south-west to more than 600 m thick in the north. The basement geology is interpreted from geophysical and drillhole data as comprising mainly Mesoproterozoic volcanic rocks, which overlie older Archaean gneisses. Unconformably overlying this crystalline basement are redbeds of the Pandurra Formation, which were deposited in the Cariewerloo Basin during the Mesoproterozoic. North-westerly trending mafic rocks of the ?Neoproterozoic Gairdner Dyke Swarm in part intrude the Pandurra Formation as well as transecting the older basement. It was inferred that the zone beneath and marginal to the GRV Domain was a shallow, high level igneous environment which came into existence during the Mesoproterozoic Hiltaba thermal event, with mineralising conditions similar to the geological setting at the Olympic Dam IOCG-uranium deposit, which lies 90 km to the east. It was also thought that there could be potential for finding basement unconformity - related uranium mineralisation, because the Gawler Range Volcanics and co-magmatic Hiltaba Suite intrusives are enriched in uranium, and should provide a potential primary source from which uranium could have been leached during later weathering. Redbeds of the overlying Pandurra Formation would have provided an oxidising environment in which uranium could be transported in solution, ultimately to accumulate in suitable reducing trap sites related to the unconformity or intersecting fault zones. Initial work by Southern Uranium consisted of the compilation and re-interpretation of available geophysical and geological data, followed by the acquisition during October-November 2007 of infill gravity coverage (345 stations read at 1 km x 1 km spacing) across the northern half of the tenement. A number of interesting gravity features were discerned, but it was decided that they needed further gravity detailing at 250 m spacing in order to firm up drilling targets. The southern part of the licence was not surveyed, since it was believed that there the masking Cambrian-Adelaidean sedimentary cover is too thick to allow for effective geophysical exploration, as borne out by the available regional magnetic and gravity response which is muted and bland. During this period problems emerged of companies being able to retain land access rights for conducting mineral exploration on the Woomera Prohibited Area, and this disincentive to timely project planning and the need to lobby government about it slowed activity on the licence to less than the required expenditure. For the second licence year the joint venturers concentrated on doing additional processing and interpretation of the 2008 gravity data, but no robust drill-worthy targets were recognised. The apparently excessive (> 1 km) thickness of sedimentary cover across much of the area, and the continuing impasse in concluding negotiations with the Commonwealth Department of Defence regarding access issues, led to a perceived low prospectivity for the ground overall, and so it was decided not to renew tenure for a third year.