Exploration by Afmeco for uranium and base metals in an area north of Mount Christie included a consultant's interpretation of previously acquired aeromagnetic and aerial radiometric data (for surveys flown by Austirex in November 1979), a ground-based follow-up of radiometric anomalies, including reconnaissance geological mapping and outcrop sampling, plus air-core and diamond drilling (20 holes, total 1134 metres), and petrological and spectrometric studies of surficial sediments and basement amphibolite/granulite facies drill core/cuttings. A significant yet restricted thorium anomaly was identified in sedimentary cover near West Well, but testing of the underlying weathered gneiss failed to reveal a nearby primary source for the eroded rare earth mineralisation. Exploration for diamonds and base metals by subsequent EL 974 joint-venturer BHP Minerals included RAB drilling of 5 selected aeromagnetic anomalies (13 holes, total 418 metres) and soil sampling (379 samples) for base metal values and heavy mineral analysis. No geochemical anomalies or kimberlitic indicators were found.