This silica-replaced dolostone from the Lost City showing located on the western flank of the Reveille range contains black, coarse-grained sulfide minerals such as freibergite that are rich in silver; this sample contains 2,660 g/t silver and 1.5 % copper. Hyperspectral scanning by TerraCore LLC confirms silica replacement with long-wave infrared (LWIR) and reveals widespread high temperature illite clay with short-wave infrared (SWIR). This technology will be utilized on the upcoming RC drill program because these alteration styles are proven vectors to mineralization across the Reveille mineral system and property.