Heavy mineral marine placer deposits formed within the Pliocene Loxton-Parilla Sand of the Murray Basin were the targets of exploration in areas lying immediately north and south of Bordertown. Aircore drilling (86 holes, total 1903 m) was carried out on traverses laid out mainly along roadside verges throughout these areas, at hole spacings varying from an initial 3.2 km to as close as 100 m in places where the estimated heavy mineral grades exceeded 0.5 %. No significant mineralisation was recorded within the surrendered areas (best result being 1.5 m @ 1.2 % HM from 15 m depth on the south-western end of line ST08, near the Padthaway Ridge).