Exploration Licence 3096 “Brooker” covering an area of 682 square km lies east of Elliston on the Eyre Peninsula in South Australia. It is one of three adjacent tenements that form the “Brimpton Lake Project”; the other two are EL 2662 (initially being explored in a joint venture with Alphadale Pty Ltd) and EL 3126. The principal exploration target for the area is Archaean volcanic or sediment - hosted base metal massive sulphide mineralisation of Golden Grove and Kidd Creek type. Potential also exists for intrusion - related nickel mineralisation associated with the Polda Basin margin. No basement outcrop occurs in the area, and previous limited exploration has indicated that basement generally lies at depths of between 20 m and 100 m. During the first licence year, licensee Anglo American did no field work on the subject area. Instead, project activity was concentrated on EL 2662, where several RC drillholes had success in intersecting low-grade zinc sulphide mineralisation. Initial work conducted on EL 3096 included literature reviews, interpretation of regional geophysical surveys, and target generation. During licence Years 2 and 3 no field work was done, because new licensee Alphadale was waiting on the outcome of delayed, PACE Initiative - funded drilling that was to happen on adjoining project tenements before finalising its target concepts for EL 3096. During licence Year 4, a total of 150 line km of ground magnetic profiles were read at ~1 m station intervals over two prospects along east-west traverse lines spaced 100 m apart. After interpretation of the detailed magnetic data, a single westwards angled exploratory drillhole, BRDD01, was completed to a total hole depth of 349.3 m on the Brooker 1 prospect magnetic anomaly (80.9 m rotary/mud precollaring, plus 268.4 m NQ2 diamond coring). No mineralisation was encountered in this hole. 13 samples of the various different rock units encountered were sent for petrological thin section description, and selected lithologies in the drill core were assayed for 74 elements to assist with regional geological correlations; these assay submissions included several samples of magnetite - rich iron formation which were of interest for iron ore potential. Although diamond coring in the drillhole was not begun until 82 m hole depth, it was clear to Lynch Mining from both precollar drill cuttings assays and chip descriptions that weathered gneissic and sometimes magnetite-bearing units had been intersected from ~24 m hole depth. This was thought to be encouraging for the development of potential hematite-rich iron formation within the weathering zone in areas not yet drill tested, where such would be underlain by extensive occurrences of magnetite-rich iron formation. Assaying of core from BDD01 showed that iron grades were generally in the range 10-15% Fe, with low amounts of iron ore contaminants and with relatively high manganese contents (0.3–0.6% Mn). While the results for iron grade were generally lower than expected, the large amount of magnetite-rich rock material present at Brooker 1 was believed to account for the magnetic anomaly observed there. During licence Year 5, 220 line km of ground magnetic surveys were acquired over the Brooker 1A, Brooker 3 and Brooker 4 aeromagnetic anomaly prospects, using the same survey parameters as in Year 4. The Brooker 1A survey grid, located to the north of the Brooker 1 grid, produced detailed magnetic results that clearly showed the subsurface extension of iron rich materials intersected in drillhole BRDD01. Additional drill targets for potential iron ore were able to be defined. During licence Years 6 and 7, no field work was done. Instead, Lynch Mining continued to review regional geophysical data and previous exploration data. A significant effort was made to compile all basement information available from previous exploration drilling and water wells, to enable a regional depth to basement plan to be constructed. This work revealed that depths to basement throughout much of the tenement area are less than 40 m. A proposal for funding assistance from the SA Government's PACE Initiative was prepared, to help the company with its intended drill testing of the wider magnetic anomaly area around hole BRDD001, together with testing of several prominent magnetic features on adjacent tenements. This proposal was submitted in March 2010, and funding was approved by PIRSA in May 2010 as collaborative drilling Project DPY6-33. During licence Year 8, Lynch Mining performed the PACE- subsidised drilling [for results, see Env 12244]. 45 aircore holes with a total penetration of 2407.6 m were completed along a number of drill traverses across the Brooker1/1A magnetic anomaly (now re-named the Trikera prospect), which successfully further defined the iron formation, although the good iron grades encountered were patchy. Only weak base metal and uranium assay values were returned from drill sample assays. Plans were made to follow up the better grade iron intercepts from the PACE project aircore drilling with diamond drilling. During licence Year 9, three additional angled diamond drillholes, BRDD002 - 004, together having a total penetration of 961.4 m, were completed to evaluate the iron ore potential of the strongest magnetic anomaly portions at the Trikera prospect that are sourced from below the least amount of cover. Although various width intervals of iron mineralisation were found, they were all considered at this stage to be below the required average grade to be of economic interest.