Exploration for possible economic buried sedimentary uranium deposits has been carried out in an area located 60-70 km south-west of Tarcoola, entirely blanketed by Quaternary aeolian sands, which holds sections of the preserved remnants of the Kingoonya and Warrior Tertiary palaeochannel systems that were originally incised into weathered basement. The choice of this 321 square km licence area was influenced by it encompassing the interpreted hidden geographic intersection of these palaeochannels, both of which have high potential for the discovery of sedimentary roll-front style uranium deposits. Palaeochannel roll-front style uranium mineralisation has previously been found by drillholes put into both of these palaeochannel systems, and both are currently the focus of intensive exploration efforts by a number of companies. The approximate location of the channels being investigated has been interpreted from remotely-sensed thermal infrared spectral imagery, geophysical survey data, topographic elevation data and drillhole stratigraphic information. At the outset, licence operator Southern Uranium compiled, examined and re-interpreted a large amount of previous explorers' data, before conducting an airborne EM survey over the entire tenement. During November 2006 contractor Fugro Airborne Surveys flew 814 line km of TEMPEST EM coverage along 44 north-south orientated lines spaced 500 m apart. A consultant's interpretation and modelling of the EM data clearly showed the distribution of palaeochannel sediments, and was able to map the chemically reduced fill of the main Kingoonya Palaeochannel over a 20 km long section that has significant thicknesses of preserved sediments. The next stage of work planned was a 35 hole / 4375 m aircore exploratory drilling programme, of five north-south aligned traverses with holes drilled 200 m apart, that was designed to test five high priority targets where oxidised, non-conductive sediments in tributaries meet the conductive sediment fill of the main Kingoonya Palaeochannel. The target priorities had been assigned based on the presence of uranium radiometric anomalism within the overlying modern drainage. An application for PACE Initiative funding assistance with the proposed drilling was submitted by Southern Gold in October 2006 for approval by PIRSA, but no subsidy was granted, so the drilling was postponed indefinitely, principally due to the financial commitments then incumbent on the licensee because of its numerous other exploration activities underway elsewhere. No field work took place during the third, fourth and fifth years of tenure of EL 3284. A detailed Declaration of Environmental Factors was prepared in April 2009 at the request of PIRSA, to allow the licensee to be granted on-ground access into the Yellabinna Regional Reserve for the purpose of conducting a reconnaissance plant biogeochemical survey as a precusor to the intended aircore drilling. This permission was given based on the DEF information supplied. However, when on-ground access was attempted, the licensee became aware that reasonable physical access into the reserve was difficult to achieve, even when using transport as light and compact as 2WD quad bikes, thus severely hampering and eventually curtailing the planned work. Steps were also put in place to obtain Native Title clearances over the sites of the proposed drilling, but the process was delayed because of procedural complications and hot weather. After further access - related discussions and negotiations with PIRSA and the State's Department of Environment and Heritage had occurred, the licensee decided in August 2010 to surrender tenure, after it became increasingly clear that options for gaining access into the licence area, which is largely surrounded by the Yellabinna Wilderness Protection Area, were likely to prove difficult and costly to implement with regard both to time and resources required.