Copper Range's principal exploration targets in the Adelaide Fold Belt are secondary, near-surface oxide copper deposits that are structurally controlled and related to hydrothermal events focussed along faults late in the deformational history of the region. The company is of the view that there has been insufficient exploration for oxide copper resources in the Adelaide Fold Belt, and it sees a possible opportunity to establish a central copper solvent extraction - electrowinning plant, sourcing oxide copper feed from a number of deposits. The company is also targeting primary sediment-hosted copper deposits. It considers that much of the previous exploration for copper in the Adelaide Fold Belt has been based on the assumption that copper mineralisation was emplaced during or shortly after deposition of the host sedimentary rocks, i.e. syngenetic or early diagenetic deposits. Exploration has been largely confined to the stratigraphic horizons that host mineralisation at Burra (Skillogallee Dolomite of the Burra Group) and Kapunda (Tapley Hill Formation, Umberatana Group), and to areas of known mineralisation, e.g. Wyacca, Wirrawilka etc. By contrast, Copper Range's conceptual model holds that primary sediment-hosted stratiform sulphide bodies may be epigenetic, forming in reactive strata and in dilatant sites adjacent to significant through-going structures. The use of Aster satellite spectral imagery plus airphoto interpretation has been used to identify surface exposed zones of alteration that indicate appropriate stratigraphic horizons and substantial fluid movement. This method has generated targets that are not related to known mineralisation and thus have not been explored in the past. The Mount Craig tenement area, located approximately 20-30 km east of Hawker, was originally taken up due to the high concentration of old mines and workings noted to exist throughout the Worumba Anticline. The mined deposits are structurally complex and occur in association with a range of rock types. While the previous exploration was in some places quite detailed, controls on ore localisation remain poorly understood, and much of the past work was ill-directed. These historic prospects provided initial targets in the search for shallow copper oxide deposits, as the apparent extent of the mineralised system within the Worumba Anticline suggested that significant potential still existed for the discovery possibly high grade extensions to known deposits. A review of past exploration reports was accompanied by preliminary field visits to the most prospective areas of old workings. Most of the old workings are associated with dolerite rafts/intrusions, and these were considered to be local occurrences and not likely to have sufficient tonnage potential. Workings to the west of the Wirrawilka mining area were considered the most prospective due to the extensive outcrop of malachite-bearing dolomite (Birthday Ridge) and sandstone/marl highlighted by Utah Development Co. Ltd and BHP Minerals (EL 956, open file Envelope 4572, January1986), who undertook costeaning and limited drilling that indicated lateral extent of the zone. This zone was targeted as a sediment-hosted copper deposit, and the exploration model was based on the potential presence of a copper oxide blanket developed above primary disseminated sulphides within the sandstone/carbonates. Preliminary rock chip sampling of malachite-bearing dolomites and sandstones was undertaken (34 samples), and followed up with a soil sampling grid (536 regoleach samples collected) to determine the extent of mineralisation under extensive alluvial cover. Shallow RC drilling to 30-50 m depth (38 holes for a total penetration of 1446 m) during September-October 2006, the cost of which was partly subsidised through PIRSA's PACE Initiative, was focussed on the known outcrop and attempted to locate structures that might have controlled the development of an oxide blanket. The best downhole mineralised intercept obtained was 16 m @ 0.34% Cu from 23 m depth in hole B02, including a 2 m thick interval averaging 0.6% Cu. The drilling results highlighted that the mineralisation is lithologically controlled in sandstone and dolomite beds within a thick sequence of black shale. No copper was present in the shale or associated with any structures, which negates the oxide blanket model in this area. Whilst insufficient mineralisation was intersected, the drilling programme did emphasise the potential for finding significant sediment-hosted copper mineralisation both locally within the Mount Craig licence and throughout the company's other tenements in the Adelaide Fold Belt. In a switch of exploration emphasis made during mid-2007, Copper Range decided to reassess the possible role of diapirism in the genesis of copper mineralisation in the Mount Craig area. The company invited international sedimentological consultants Jon Thorson and Chester Wallace from Colorado, USA and Rod Kirkham from Vancouver, Canada to visit and review the Worumba Diapir and the history of basin development in the Adelaidean with relation to diapirism and fluid flow. Two field trips were undertaken to Copper Range project areas within the Adelaide Fold Belt, during late November-December 2006 and September 2007. The experts' involvement highlighted numerous similarities between the Adelaidean basin and other basins worldwide that host stratabound copper mineralisation. In some cases there is a strong link with diapirsm and salt tectonics, e.g. as in the Paradox Basin of Utah. Consequently Copper Range set about developing exploration models, bearing in mind the extensively weathered and leached nature of the Adelaidean rocks, to more comprehensively explore the Worumba Diapir. The folded margins of the diapir were studied using regional magnetic and radiometric data and Aster satellite images, to define where significant structures cross-cut favourable evaporite or reductant-bearing lithologies. Preferred new drill targets would be those in which sandstone (quartzite) units are associated with dilational structures that could focus the flow of copper-bearing brines; places where suitable stratigraphic traps may exist within the sediments surrounding the diapir (e.g. where altered (bleached), porous quartzite/sandstone units lie stratigraphically beneath impermeable reducing layers, such as Wilyerpa Formation quartzite beneath a Tindelpina Shale seal, or Yednalue Quartzite beneath a Skillogalee Dolomite seal); and any relict zones of extensive rock dissolution. Four such target sites were identified by Copper Range late in 2008, using structural and lithological information. However, prior to conducting follow-up exploratory work, subsequent reviews of each site resulted in a downgrading of their potential to contain significant copper accumulations. In other work commenced during 2008, outcrops of massive ironstone present on the licence, and some historically worked iron ore occurrences, were inspected and reconnaissance sampled (19 samples assayed for their iron grade). The results were encouraging, yielding up to 67% Fe. Mapping and rock chip sampling of the Holowilena Ironstone formation outcrops around the edges of the Worumba Anticline was also undertaken during 2008-2009, as was further investigation of certain old copper workings associated with the Worumba Diapir, including the Kirwan, Napoleon and Bottle Dump workings. Exploration progress was delayed by unforseen corporate issues arising as a result of the global financial crisis and the need to transfer the company's exploration office from Adelaide to Perth. Eventually field work on EL 3450 ceased altogether in early 2010, and the licence tenure was allowed to lapse at the end of Year 5.