EL 3492 was originally taken out to cover the historic copper workings at Wyacca, located 40 km east of Hawker, as part of an exploration project addressing possible economic shallow oxide copper mineralisation associated with old mines and workings in the Worumba Anticline. A review of past exploration reports was accompanied by preliminary field visits to the most prospective areas of old workings, a concentration of which occur in the Wyacca mines area. These mined occurrences appear to be structurally complex. While the previous exploration was in some places executed in a quite detailed manner, it appears that the controls on ore localisation remained poorly understood, and clearly much of the past work was ill-directed. Whilst there are other copper prospects within EL 3492, Wyacca has been the main focus of exploration in the tenement. The use of aerial photography and Aster satellite imagery, accompanied by field visits to the area surrounding the Wyacca mines, identified a chalcopyrite-bearing quartzite unit in the footwall to the known mineralisation. Mapping carried out here by consultant Martin L'ions confirmed the location of structures that may have focussed fluid flow, and identified strata that could have been been conducive to the precipitation of copper in porous horizons at a reducing boundary. As a result, the main targets in the tenement area are thought to be zones of alteration associated with structures formed at the boundary between the quartzites of the Yudnamutana Subgroup and the Tindelpina Shale at the base of the Tapley Hill Formation. Preliminary mapping and rock chip sampling of a sandstone unit containing disseminated pyrite, undertaken in May and July 2006, identified possible drilling targets at a hill situated north of Wyacca Hill and directly south of the old workings (known as the Wyacca Hill target), and at an altered iron-rich ridge east of the old workings (known as Ironstone Ridge). Grid-based soil sampling (regoleach) was completed over both prospects during November 2006, but a review of the soil geochemical data proved inconclusive, and further field visits with geochemical consultant Neil Rutherford resulted in their downgrading. A regional investigation was undertaken for Copper Range during 2007-2008 by consultant Jon Thorson, which covered all six tenements in the Hawker Project area, including EL 3492. Thorson undertook a review of basin subsidence within the Adelaide Fold Belt, focussing on the Parachilna area. He created a series of subsidence history diagrams from which he interpreted fluid generation events and suggested suitable host rock units for sandstone-hosted copper deposits. Several units were identified, including the clean cross-bedded quartzite unit locally present at the top of the Wilyerpa Formation in the Wyacca area (informally referred to as the 'Wyacca Quartzite'). This unit is considered to have potential as a disseminated copper host rock. It is overlain by the pyritic and carbonaceous Tindelpina Shale Member of the Tapley Hill Formation, which may have acted as seal to copper-bearing fluids percolating through the underlying rock. Although the results of the soil sampling done at the Wyacca Hill and Ironstone Ridge prospects were not encouraging, it was decided to conduct further exploration of the Wyacca mines. In July 2008 two lines of IP traverses were completed, perpendicular to strike and centred on the Tindelpina Shale outcrop zone, in an attempt to identify possible disseminated sulphides within the sandstone unit below. Both lines of IP detected significant chargeability anomalies, and subsequent RC drilling of each of these (2 vertical holes for a total penetration of 235 m) intersected pyrite-bearing black shales that are sufficient to explain the IP anomalies. Only very minor copper sulphides and malachite were observed in the drill chips, and the downhole sample assay values did not reflect much copper content in the shales. On the north-eastern end of the Wyacca mining site is a deep inclined shaft sunk onto a narrow coarse carbonate vein that contains up to 7% copper sulphides (bornite and chalcopyrite) but has limited outcrop and apparently limited extent. A fixed loop ground EM survey was completed over this target (the Wyacca North prospect) to attempt to identify if the vein widens at depth and whether it shows continuity. No TEM anomaly suggestive of this scenario was identified. A single RC drillhole put down adjacent to the vein to TD 87 m failed to encounter either the carbonate vein or any sulphide mineralisation, which result implies that the vein is probably pipe-like and of extremely limited lateral extent. During 2009 and 2010, as part of a refocus of Copper Range's exploration efforts, a desktop evaluation of the licence area's potential to host economic metasomatic iron ore occurrences or banded iron formation strata was completed. Although some significant reconnaissance grab sample assay values of around 65% Fe had been obtained from localities outside of and adjacent to EL 3492, at the historic Iron King mine and from an un-named iron occurrence identified 15 km south-west of Iron King, no significant massive ironstone beds could be found within the subject licence along strike from these occurrences. It was decide to allow tenure to lapse at the expiry of licence Year 5.