In a search made predominantly for possible Archaean to Mesoproterozoic basement - hosted buried IOCG or mesothermal gold deposits, within an area centred approximately 40 km south-east of Tarcoola and in the vicinity of the Glenloth Goldfield, no work other than a geological reconnaissance trip to the latter location took place during the period after 1/7/2010 when Range River Gold had resumed full ownership of the subject licence. However, during earlier years the previous joint venture partners had undertaken various work programmes, which in part fell within the confines of the now relinquished three licence subareas, having details as follows: - A regional gravity survey was conducted by Haines Surveys for Minotaur Exploration during August 2005, when a total of 217 gravity stations were read, incorporating regional data acquisition at a 1 km x 1 km spacing, plus infill coverage acquired at 500 m x 500 m and detailed gravity observations made at 100 m intervals along a north–south line. This survey was conducted in order to identify potential IOCG targets which are typically associated with large gravity anomalies. The new gravity data confirmed and enhanced a large anomaly located on the western margin of EL 3107, having a strike length of ~2 km, width of ~1 km and a residual amplitude of 11 mGal, similar to the anomaly detected by WMC at at Olympic Dam. Minotaur's 3D modelling of the gravity data identified several dense bodies lying at interpreted depths of around 300 m: none of these targets fall within the presently relinquished ground. - Two ground magnetic surveys were also undertaken by Minotaur during August 2005. One was undertaken across the aforementioned large regional positive gravity anomaly mapped 25 km west of Yerda Homestead, in order to ascertain the dip and dip direction of basement strata. Readings were taken every 10 m along two N–S lines each 3.5 km long, laid out 500 m apart. Minotaur's in-house 2D magnetic data modelling indicated that the main body of interest dips steeply northwards and occurs at a relatively shallow depth (<100 m below the surface). The other survey addressed a small circular magnetic body of reverse polarity lying 2.5 km NW of Yerda Homestead, and consisted of a total of 6 lines, three oriented N–S and three E–W, with the lines laid out 150 m apart and magnetic readings taken along them at 10 m intervals. Part of this particular survey falls within the now relinquished ground. In house modelling done by Minotaur suggested a west-dipping body with a shallowest depth of 60 m, thickness of 150 m, likely depth extent of 350 m and a strike length of 500 m. - To appraise the potential for sedimentary uranium mineralisation which could have formed within palaeochannels present on EL 3107 and adjacent tenements, a TEMPEST airborne EM survey was flown during July-August 2006 by Fugro Airborne Surveys for farminee Toro Energy. The primary purpose of the survey portion flown over EL 3107 was to further delineate the periphery of a north-trending palaeochannel which lies to the west of the EL 3107 tenement boundary. The 573.5 line km AEM coverage comprised E–W flight lines spaced 1 km apart, with N-S tie lines made at 1 km intervals. The TEMPEST EM data was processed by Fugro to produce an image of interpreted depth to bedrock [image not able to be supplied to PIRSA by Range River Gold]. - During December 2009 a follow-up biogeochemical survey was undertaken by Minotaur across interpreted key fault and shear zone structural features, in an attempt to discover new areas of hydrothermal gold mineralisation. Five lines were selected for investigation based on previous calcrete sampling and RAB drilling results, and to confirm anomalies discovered in the first-pass August 2009 biogeochemical survey when 407 vegetation samples were collected along 20 lines covering the entire tenement. Only follow-up Line 5 was situated within the now relinquished ground. 22 vegetation samples were collected at 50 m intervals along it, predominantly from Black Oak, with lesser quantities of Pearl Bluebush and Mulga. The majority of the gold assay results returned from these vegetation samples were less than the gold detection limit of 0.2 ppb. Of the gold results that were above the detection limit, none exceeded 0.5 ppb Au.