Ongoing uranium exploration work in an area immediately south of Lake Frome has comprised the evaluation of pervasive uranium mineralisation encountered within the Billeroo Palaeochannel over several km of its length, a short distance north of the newly discovered Gould's Dam sedimentary uranium deposit. Three target areas were addressed by reconnaissance and trial detailed resistivity profiling, plus additional open-hole rotary drilling and geophysical logging (54 holes for 7207.8 m). The resistivity programme was unable to adequately define the channel banks or Middle Cambrian channel floor topography, but subsequent drilling was satisfactory in this regard. However, the hole spacing of 60 m on traverses 200 m apart proved to be not dense enough to fully assess the encountered mineralisation, because redox interfaces could not be correlated from one traverse to the next. Apparently the terminal areas of the geochemical cells are characterised by the presence of 'fingers' of altered ground with preferred permeability, that correspond to the original main braided channels for each principal sand unit within the Palaeocene to Eocene Eyre Formation equivalent. To date, three phases of rotary drilling, involving 46 holes out of a total campaign of 130 holes totalling 17,220 m, have substantially outlined the Gould's Dam deposit and its setting within the Billeroo Palaeochannel. It occurs as a thin, low grade mineralised Early Tertiary channel sand lens having dimensions of length 1000 m x width 100-350 m, beneath 115 m average depth of cover. This low grade mineralization was encountered along a 1200 m stretch of the palaeochannel located adjacent to Pacminex' discovery drillhole PMX29A. However, current CSR drilling over the interpreted embayment lying immediately to the north of the deposit has intersected only barren sands, presumably within a portion of a cut-off anabranch to the main channel. Thicker low grade mineralization was located near the terminal geochemical lobes of intra-channel sand Units 1 and 3, but as mentioned above, the geometry of these lobes is complex. Elsewhere, reconnaissance open-hole rotary drilling over what turned out to be a poorly developed section of the previously discovered Curnamona Palaeochannel (21 holes, total 2886 m), in the south-western corner of EL 227, found minor sedimentary uranium mineralization associated with neutral to fresh sands of the channel section and carbonaceous clays in the Namba Formation.