Ongoing exploration for economic buried stratiform copper mineralisation within a small area located 97 km east of Lyndhurst under renewed tenure has consisted of detailed, 1:1000 scale geological mapping and surface geochemical sampling, plus follow-up exploratory drilling: 20 inclined percussion holes, and 5 separate inclined precollar plus diamond tailed holes were drilled, totalling 3700.9 m and 1015.3 m respectively, which included 446.4 m of NQ coring in the latter. Three of the cored holes (YD002-004) were drilled to test for down-structure extensions of known copper sulphide lodes occurring at the Wheal Austin prospect. The target Willouran age Upper Callanna Beds strata during their deposition are considered by Utah to have transgressed the basement land surface from west to east, thinning out over palaeohighs formed by the Wooltana Volcanics. The basal metasedimentary unit of the group, the Blue Mine Conglomerate, is thought to be a sublittoral sandsheet, with the overlying Opaminda Formation being the seaward facies of it. The Blue Mine Conglomerate appears from mapping and drilling evidence to contain the bulk of the secondary copper mineralisation, and looks to have the most prospectivity for possible buried primary sulphide ore in the area between Wheal Gleeson South and the Wealthy King mine.