An area lying ~70 km east and south-east of Oodnadatta is being explored for possible buried economic giant Broken Hill type (BHT) stratiform Pb-Zn-Ag deposits which may be contained within strongly deformed and metamorphosed Palaeo- to Mesoproterozoic metasediments and metavolcanic rocks, within an effectively previously untested basement setting located north-east of the Peake and Denison Inliers. Here the metamorphic basement is covered by Mesozoic sediments of the Eromanga Basin, with the Cretaceous Oodnadatta Formation forming the majority of outcrop. However, in the main the ground surface within the project area is covered by Tertiary and Quaternary alluvium and colluvium. Previous exploration locally had been limited to a government-run TEiSA airborne magnetic survey and some patchy ground geophysical surveys. Historically, only two prior mineral exploration holes had been drilled into nearby basement, east of EL 5514, with the unconformity met at ~250 m depth. Prior to the grant of the two project licences, a geological interpretation of the basement rocks in the project area was completed by Dr Douglas Haynes of Douglas Haynes Discovery Pty Ltd, using public domain geological and geophysical data. The interpretation was carried out in a GIS environment, and used public domain geological and geophysical data for the Broken Hill Block as a reference. It identified a main target area in the west of EL 5514 where inferred Broken Hill Group equivalents display strong deformation in the form of folded iron formations with short strike length and curvilinear magnetic signatures. Similar deformed iron formations are found at both Broken Hill and Cannington. These interpreted iron formations formed the focus for planned subsurface exploration on the tenement, since previous exploration in the area had not drill tested any of the features which were now considered to be banded iron formations or magnetite-bearing pelitic units proximal to base metal mineralisation. Two generations of folding were interpreted on EL 5514: (1) early broader folds with long north-west axial trends, and (2) late tighter folds with shorter north-south trends. Faulting in the area also appeared to parallel the early fold axial trends and lithological domain boundaries. Using the Broken Hill deposit as the prime analogy, it was expected that any BHT mineralisation would most likely occur on the limb of a late fold. In addition, the existing aeromagnetic data showed some prominent high amplitude, long wavelength anomaly signatures in the southern part of EL 5514, on the north side of a late granite body. These features were interpreted as denoting possible magnetite enrichment accompanying IOCG alteration. Similar alteration had previously been interpreted just to the east of EL 5514 over the Toby target which was drilled in 2004 by Platsearch (TBY-1). In April 2015, the project licensee was successful in its application made to DSD to be awarded a grant of PACE Initiative collaborative drilling Round 8 subsidy funds, to direct at investigating what might be the BHT mineralisation potential of the untested basement hidden beneath the regolith at >150 m depth. Approved drilling project DPY8-04 consisted of 3 vertical rotary mud precollared diamond drillholes which were designed to test inferred structural targets below the base of Mesozoic or Neoproterozoic unconformity. These drillholes, plus another two addressing IOCG targets, were completed by the licensee during the period April to July 2016, for a total penetration of 1370.2 m comprising 1211.6 m of rotary mud precollar drilling and 158.6 m of diamond coring. The planned commencement of drilling, and drilling operations during the period, were respectively delayed and then severely hampered by unseasonal wet weather. Pre-Mesozoic basement rocks were reached in every hole. The targeted magnetic anomaly at each separate drill location was adequately explained by the basement geology that was encountered. The package of rocks comprise a sequence of low-grade metamorphosed metasediments interspersed by basalt and dolerite units. From a consultant's petrographic and mineragraphic examinations of 10 selected drill core samples, both high and low temperature alteration mineral assemblages were noted as being present, with a genetic relationship suggested between potassic (biotite-magnetite) alteration representing a proximal alteration facies with higher fluid flow (in holes WD16-01, 16-04 and 16-05) and a lower temperature sericite-chlorite-magnetite facies reflecting distal alteration that occurred beyond the focus of fluid flow (in holes WD16-02 and 03). No anomalous base or precious metal geochemistry was detected within the 117 drillhole samples that were assayed. The metamorphic grade of the basement rock package is much lower than would be expected for a sequence that is prospective for BHT mineralisation, and it was speculated that the age of the drilled rocks may in fact be Neoproterozoic or younger (?Devonian). Limited geochemical characterisation studies carried out to date on the cored mafic rocks have indicated that they could have petrogenetic affinities to either the Palaeoproterozoic Myola Volcanics or the Devonian Ooloo Hill Formation. Although little information is available for making a geochemical comparison of them with the Palaeoproterozoic Tidnamurkana Volcanics which outcrop in the Peake and Denison Ranges, these latter are equivalent in age to the Myola Volcanics. In view of the disappointing drilling results obtained, the perceived potential of the project area to host a BHT deposit has been substantially downgraded.