Copper Range has targeted several different styles of base metal mineralisation within the Chace Range district. Initially its focus was on sediment (sandstone)- hosted copper deposits, with exploration being confined to reconnaissance field visits to prospective host rock outcrops. The company also reviewed the prospectivity for finding Beltana-style zinc silicate deposits within Cambrian carbonate rocks, and has undertaken a review of previous exploration data, as well as a regional structural interpretation using available magnetics and other geological data. It was thought that anomalous base metal geochemistry evident in the ironstones that are developed at the base of the Parachilna Formation may mask earlier haematite-zinc-dolomite alteration which is characteristic of willemite (zinc silicate) mineralisation at Beltana, because the elevated levels of iron and manganese seen around the Beltana deposits are the result of alteration of the dolomite by acidic fluids, implying that supergene processes could have further modified the Fe and Mn-enriched dolomite, possibly into ironstone. Thus, further investigation of these basal Cambrian ironstone bodies and their associated geochemistry was warranted. Also, former studies of the mineralisation at Beltana have highlighted the structural factors which have influenced emplacement of this deposit, wherein hydrothermal karstic collapse breccias have created space in which the zinc silicate mineralisation was precipitated. The karst within the host Ajax Limestone was interpreted to have formed as a result of dissolution by an acidic fluid. At Beltana, as well as at other sediment-hosted deposits such as Burra, these fluids were sealed by a clay-rich fault. The identification of similar structures within the Chace Range area was thus regarded as a priority task. The majority of the work actually undertaken within EL 3819 included making reviews of and then digitising relevant past exploration data, performing a structural analysis to define possible hydrothermal solution feeder structures, and making some brief reconnaissance visits to prospective field sites. No specific structural targets were identified within the licence area. Several locations having anomalous stream sediment geochemistry were identified, but no zinc mineralisation or unexplained base metal anomalies were located during the field visits, and so no further work was undertaken. A careful study of the detailed reports about traces of mineralisation detected by previous explorers did not give any encouragement for follow-up. The tenement area was also canvassed for its iron ore potential, via a brief inspection of the areas of outcrop of the Holowilena Ironstone. No significant iron deposits were detected.