Exploration for possible diamondiferous kimberlite in the Venus Bay area of western Eyre Peninsula, located approximately 45 km south-east of Streaky Bay and 70 km north of Flinders Island, has formed part of a regional search by Orogenic Exploration that embraces four contiguous licences covering the Elliston district. The majority of work performed to date has consisted of intensive surficial sediment sampling and test drilling of bedrock on Flinders Island (in EL 2577), with activity on the adjacent mainland being restricted to a detailed re-evaluation of the results of extensive previous diamond exploration done by De Beers and Diamond Ventures, and interpretation of open file geophysical surveys to try to find untested target anomalies. The density of past surface loam sampling on the mainland, with heavy mineral sample locations often being > 10 km apart, is regarded by Orogenic as leaving the kimberlite potential of many areas inadequately assessed, as based on their Flinders Island experience. Four surface loam samples were taken by Orogenic from within the western side of the relinquished portion of EL 2927, where no previous heavy mineral sampling had been done. After the heavy fraction had been separated out, the heavy mineral concentrate was examined for possible kimberlite indicator minerals, and several grains of interesting morphology were found, including a possible chrome diopside. Subsequent electron microprobe mineralogical check analysis of these grains showed that they are not kimberlite indicators, so it is concluded that no kimberlite intrusion exists in the western part of the licence area. However, due to the sparse sampling done to date, it is considered that a diamondiferous kimberlite may yet exist undetected in the EL 2927 region.