An airborne magnetic/radiometric survey was flown over the licence in 1969. Three anomalies located near Peake Homestead Ruins and the Coppertop mine gave disappointing ground survey uranium responses from traverses made with a hand-held scintillometer, although rock chip sample assaying yielded up to 550 ppm U. Diamond drilling for copper previously carried out by North Broken Hill at the War Loan mine and Peake Homestead Ruins had given discouraging results (less than 0.1% Cu on average from 1017 feet of drilling over IP anomalies), although widespread traces of secondary copper mineralisation were observed by Minoil's current prospecting to the south of the latter prospect. Other old copper mine sites were also traversed with a scintillometer, and significant spot radioactivity was detected. The best such anomaly was at Last Chance mine, reading as high as 50 x background. During early 1970, the licensee drilled its Anomaly E uranium prospect located west of Coppertop Hill with 3 percussion holes (total 523 feet). Radioactive mineralisation had been identified at surface as secondary alteration products probably derived from small grains of a primary uranium phosphate mineral. It occurs in granodiorite gneiss and in related high grade metamorphic rocks. Radioactivity up to 2800 counts per second was found at surface, and the highest assay was 0.21% U and 0.025% Th. This is 7 times higher than the best percussion drillhole sample (290 ppm U3O8 from 82-86 feet depth in PDH1), and thus it appears that the mineralisation is supergene enriched. At the Algebuckina copper prospect, IP surveys were run over gossans developed in chloritic schist. Subsequent percussion drilling of the best IP anomaly (5 holes for 430 feet) was hindered by a shallow water table. Nevertheless, downhole copper values of around 0.26% Cu over 12 feet were considered significant. Four diamond drillholes totalling 1067.5 feet were completed. Overall, only weak copper mineralisation was encountered (e.g. averaging 0.56% Cu over 60 feet in DDH F2. Minor copper (2% chalcopyrite estimated visually) was found in the Mount Kingston area along the contact of the Peake Metamorphics with the Duff Creek formation. However, assaying only gave a highest value of 0.7% Cu over 6 feet, while the breccia zones returned a best assay of 0.21% Cu over a 30 foot width. Concurrent prospecting of localities where sapphires, nickel mineralisation and trace macrodiamonds had reportedly been found all failed to substantiate these reports. A lack of kimberlite indicator minerals suggests that no primary diamond source is present in the Peake Creek vicinity. Panning of samples of Algebuckina Sandstone from old gold mines also failed to return significant gold, titanium or tin values. Channel sampling of the basal sandstone unit was recommended to try to confirm the existence of inferred deep leads. Extensive geophysical test surveying of several historical mine prospects, utilising IP, SP, ground magnetic, scintillometric, resistivity and VLF EM methods detected very few anomalies. Limited percussion drilling was recommended for mainly geologically sited targets at the Asbestos, Enrico and War Loan mine prospects, but not carried out.