This report presents new structural field mapping and reconnaissance reverse circulation drilling information aquired for Ravensdown Ltd's EP57419. The exploration permit is located immediately to the north of the adjoining active Geraldine Lime Quarry. Field mapping and exploration drilling information indicates the Otekaike limestone is contiguous with the current active quarry area to the south and is unconstrained to the north. Where limestone was intercepted by drilling the CaCO3 grade is similar to that of the adjoining quarry.