A area centred ~ 25 km west of Cleve is being explored for possible buried economic sediment-hosted or basement unconformity - related uranium mineralisation. The tenement covers part of the Driver River and Driver River Pan which contains a radiometric anomaly first discovered and investigated by SADM in 1954. No field work occurred during licence Years 1 and 2. Instead, Southern Cross Resources conducted a review of available historic exploration records and data, and made plans to acquire ground geophysical surveys to assist in defining drill targets, owing to the apparent inability of AEM methods to see through saline groundwater commonly present within the local cover. The company's compilation of past drilling data indicated that basement rock was not intersected by the 1978-1983 Pancontinental drillholes that are located within probable target areas. During licence Year 3, SXR / UraniumOne performed the following field activities: • acquisition in October 2006 of a detailed ground gravity survey totalling 133 stations read along 13 N-S trending lines; • acquisition in November 2006 of IP and resistivity measurements along two E-W oriented Pole-Dipole Induced Polarization survey traverses amounting to 6.3 line km coverage; and • the drilling in January-February 2007 of a single angled exploratory diamond cored hole (KAR001) to a total depth of 672 m, with its cost partly subsidised by the SA Government as part of PACE Intiative Year 3 collaborative drilling project DPY3-01 [for the drilling final report, see related Env 11347]. The NQ drill core from this hole was geologically and structurally logged, and samples were geochemically assayed and selected ones were examined by a petrological consultant. During licence Year 4, in June 2008, UraniumOne drilled another 3 angled NQ diamond cored holes for 533 m to investigate the unconformable contact between Palaeoproterozoic Hutchison Group metasediments and younger, Mesoproterozoic Blue Range Bed sediments for unconformity-style uranium mineralisation. However, no uranium mineralisation or associated alteration were detected, and unexpectedly, the target Blue Range Beds formation was missing at the localities tested. Previously, KAR001, which is located some 28 km to the south of KAR002-KAR004, had intersected the unconformity between the Blue Range Beds and Hutchison Group metasediments at ~627 m downhole (equals ~525 m true vertical depth). To the licensee, this newfound stratigraphic discrepancy now implied that either the basement shallows significantly to the north, or that the strata are offset by E-W trending faults. Notwithstanding this unexpected result, the fact that all of the 2008 drillholes had encountered Palaeoproterozoic metasediments exhibiting metamorphic and retrograde mineralogy that reflects hydrous conditions with episodic migration of oxidative fluids was believed to show that potential still exists in the Karkarook region for past uranium mobilisation and the formation of mineralisation. On the assumption that the unconformity lies further to the south, such places where it occurs at fairly shallow depths would be targeted by future drilling. No field work occurred during licence Years 5 and 6. During licence Year 7, in February-March 2011, the licensee acquired a ground-based audio frequency magnetotelluric (AMT) survey entailing 114 readings taken along two north-south lines at 100 m station spacing, for a total coverage of 11.2 line km, to try to measure depth to the top-of-basement unconformity. The survey data profiles showed basement lying close to the surface at the northern end of each line, but becoming increasingly deeper further to the south; there were also indications of a transverse fault offsetting the cover and basement in both sections. During July 2011, a ground based radiometric survey was carried out around the Driver River salt pans in the southern portion of EL 4304 to further assess the sedimentary uranium potential of the cover there. 120 spectrometer readings were taken, with several readings being obtained that were in excess of 20,000 counts per second. At the same time, 7 stream sediment geochemical samples were collected for laboratory assaying. Based on those assay results, which returned very low values for uranium, and thus indicated that radon was giving the very high radiometric anomalies, a further 22 auger samples of the river sediments were collected in the area in August 2011 specifically to reveal the depth of the radiometric anomaly in the stream bed, and also to determine the sediment grains' mineral composition for precisely identifying the source of the radon radiometric anomalies. No other work ensued during the next three years, and due to the ongoing worldwide depressed market price for uranium, which had caused UraniumOne to stop production at the Honeymoon ISL uranium mine and to place it into care and maintenance status, the company decided on 11/3/2014 to cease its uranium exploration on EL 4304 and to leave the joint venture.