In the mid-90’s, small-scale mining took place in the Orofino pit and the La Perla pit as well as surrounding areas. Approximately 60,000 metric tons of material was mined with grades in the order of 3 to 4 and 2.5 to 3 grams per ton Au and 34 to 83 grams/ton Ag. The work was carried out using empirical methods without any planning.
The Orofino project is located 135 km Southeast of Hermosillo, Sonora, Mexico and covers a surface area of 8,291 Hectares. Economic heap-leachable gold and silver mineralization occurs on this property in quartz-carbonate veins and disseminated, in fault zones and breccias with good alteration. The host rock is mainly Upper Cretaceous Andesite belonging to the Lower Volcanic Series in the Sierra Madre Occidental sequence, which is widespread throughout this region.
At least 10 areas of interest have been identified. These have been located through field work, drilling and several technical methods including geochemical and geophysical studies which have been performed over the years by several mining companies who have explored the property in the past. The property has potential to host a large economic ore deposit.