Following the previously reported acquisition during January-February 2004 of a moving loop surface TEM survey covering the main area of magnetic anomalism adjacent to both the Glensea Granite and the three diamond holes COD001-003, Avoca subsequently completed infill TEM surveys over 4 separate target areas during January 2005, thereby defining two significant conductors. The target defined at “Area 1” was resolved by EM data modelling as an easterly dipping plate with a strike length of 600 m and dip extent of 300 m, that lies beneath 150 m depth of cover. To test this plate with confidence, a west-wards angled drillhole with a total depth of 400 m was required. The infill survey undertaken in "Area 3" aimed to better define a smaller conductor previously seen approximately 1 km south-west of drillhole COD002, which intersected minor amounts of chalcopyrite in calcite veins but, more importantly, through providing a place to record downhole TEM, showed the presence of two off-hole conductors adjacent to the hole. The conduct of an infill TEM survey in this area and subsequent EM data modelling defined two highly conductive westerly dipping bodies. It was of interest to note that the conductances of modelled plates 1 and 2 are 50,000 and 60,000 siemens respectively, compared with 4,000 siemens for the plate modelled in Area 1, where massive sulphide mineralisation was observed in drillholes COD001 and COD003. It was proposed to test the shallower, western plate with an easterly dipping rotary mud/diamond hole with a total depth of 250 m. Completion of these infill surface TEM surveys at Cowell confirmed the prospectivity of the area for finding a large Cu-Au deposit. The linear conductor observed to lie south west of COD001 appeared to have sufficient dimensions and conductance to reflect a large mineralised system, similar to the surface geophysical expression of the Eloise Cu-Au (3.2 Mt @ 5.8% Cu and 1.5 g/t Au) deposit in Queensland which lies beneath 50-70 m thickness of conductive sediments (Brescianini et al, 1992). It was therefore recommended that this conductor be drill tested using diamond drilling techniques followed by DHEM surveying. A grant of PACE Initiative Year 1 drilling project funding was initially awarded to Avoca during September 2004, as Project DPY1-28 to drill test holes at the conductors modelled in both Areas 1 and 3; however, the severe shortage of uncommitted drilling equipment in South Australia resulted in the proposed drilling programme being postponed beyond the cut-off date for the funding to be awarded. Nevertheless, some drilling was eventually completed during the subject first year of Cowell Project exploration project joint reporting, in the form of 2 diamond drillholes with a total penetration of 354 m. Both holes both failed to reach basement due to a much thicker than anticipated Cowell Basin cover sequence. The conductors as modelled from the 2005 TEM data therefore remained untested. In more detail, the first hole, COD004 at Area 1, was angled at 60 degrees towards the west and encountered 183 m of unconsolidated Cowell Basin sediments. The upper sequence of the basin comprised 86 m of running sands and muds, followed by a middle sequence (50 m) of consolidated limestone. The basal sequence comprised black lignitic sands with a strong component of heavy tar. Basement was penetrated at 183 m depth, and consisted of decomposed white kaolinised granite. No significant assay values were returned from analyses of 3-metre composited drill core chip samples. At 201 m depth, rig capability became exhausted while still drilling in the much decomposed granite, and it was not possible to seat a string of casing into solid bedrock. The hole therefore had to be abandoned 40 m short of the target conductor. The thickness here of the Cowell Basin fill at 183 m proved to be much greater than the recorded average of 110 m, and Avoca surmised that this extra porous sediment may be causing the conductivity response. Certainly, as it was currently modelled, most of the conductor occurs within the Cowell Basin sediments and not basement. The second hole, COD005 at Area 3, was angled at 60 degrees towards the east and encountered 153 m of unconsolidated Cowell Basin sediments. The upper sequence of the basin comprised 75 m of running sands and muds followed by a middle sequence (40 m) of consolidated limestone. The basal sequence comprised black lignitic sands with a strong component of heavy tar. These lignites were estimated to have an SG in the region of 1.3 to 1.5 t/cubic m, which at a depth of 150 m proved too heavy for the pumping equipment on the rig to handle. The hole was therefore abandoned at a depth of 153 m, being 80 m short of the modelled conductor. Again the depth of the Cowell Basin was much more than anticipated and, as currently modelled, most of the conductor occurs within the Cowell Basin sediments and not basement. No samples were assayed from this second drillhole.