The surrendered two remnant portions EL 5725 Mount Deception formerly were part of a much larger multi-tenement package which is currently still being explored by Perilya, primarily looking for economic stratabound zinc silicate mineralisation similar to that occurring at the Beltana deposit. Overall, the Neoproterozoic and Cambrian bedrock within the project area is also thought to be prospective for lead-zinc sulphide and copper mineralisation. Exploration targets that have been evaluated on the subject tenement area include those which were developed from interpretations of Aster multispectral remote sensing data, as well as some present on subtended portions of the historic Red Range prospect and the Mount Bailey Syncline (since both of these explored localities, in the main, lie on Perilya's neighbouring tenements EL 5367 Copley and EL 5751 Parachilna). The earliest field work on the tenement was a program of reconnaissance soil geochemical sampling completed during 2000 at the southern end of the Red Range prospect, where 182 soil samples were collected. More recently, work was limited to conducting small programs of portable XRF spectrometric instrumental scans of soil samples (745 readings taken) plus limited rock chip sampling (20 samples). Within the Mount Bailey Syncline, XRF soil surveying was completed along the prospective Cambrian-Proterozoic stratigraphic contact located around the margin of the syncline. Although several isolated high Zn readings were obtained, no significant coherent zinc anomalism was identified. Nearby, the AST-05 and AST-07 targets were defined by potential haematite alteration spectral responses as defined by Aster multispectral iron ratio images. However, field checking of these targets failed to find any Cambrian carbonate strata outcropping there. Several rock chip samples of Callana Group diapiric breccias were collected from the AST-05 area, but no elevated base metal assay results were returned. Work undertaken during 2000 on parts of the Red Range prospect located on EL 5725 comprised conventional soil sampling done along traverses spaced 200 m apart. This identified two isolated moderate grade base metal anomalies ranging up to 1865 ppm Zn and 1050 ppm Pb. A single line of portable XRF spectrometric soil surveying was completed over the anomalous area during in 2014, but no significant readings were obtained. Several rock chip samples of manganese-rich, gossanous material were also collected in the Red Range prospect area. These returned assay values of up to 0.4% Zn. It seemed to Perilya that the surface Zn-Pb geochemical anomalism in this area is subdued because the source prospective carbonate strata plunge below Quaternary surficial deposits of unknown thickness. Testing these rocks at depth would require costly drilling, and that particular search method was considered to have low chances for success. Consequently, the company decided to allow licence tenure to lapse.