An area located within the Mount Woods Inlier in the north of the Gawler Craton, which is centred ~70 km east-southeast of Coober Pedy, has been explored for possible economic buried Prominent Hill type IOCG mineralisation. No past mineral exploratory drilling has occurred within this particular area, despite it having remained under mineral tenure almost continuously since 1973. A regional geological interpretation made by St Barbara Limited during the first licence year concluded that the basement geology of EL 4420 is dominated by Mount Woods Complex (Palaeoproterozoic gneiss), with lesser Warrina Supergroup (Neoproterozoic sediments) in the far west. Interpretation of the publically available aeromagnetic data suggested the presence of several E-W oriented dextral normal faults and several NE-SW oriented transfer faults. A reconnaissance field visit was made to the area in 2012. It revealed that no outcrops of basement occur there. Bedrock float which was encountered on the surface within the western half of the tenement was interpreted to be weathered felsic gneiss. No on-ground work could take place during 2012 and 2013 due to land access restrictions in place for the Woomera Prohibited Area, wherein the licence is located, pending the issue of a Deed Of Access from the Commonwealth Government's Department of Defence. In September 2013, after access was formally granted, a ground gravity survey was acquired to infill existing sparse regional data coverage across the north-eastern portion of the licence area. 397 new stations were read on regular 400m x 400 m grids over two targets. The new data improved the resolution of the gravity anomalies of interest. In January 2014, St Barbara chose to suspend its Australian mineral exploration activities. Previously the company had been in negotiations with several prospective joint venture partners, but had been unable to reach an agreement. Tenure of EL 4420 was allowed to lapse in January 2015, at the end of its first 5-year term.