The Target Simpson is located 37 kilometers to the north of Vallenar and next to the iron mine Los Colorados still in operation and owned by the Mining Company of the Pacific ( CMP ). The goal of the campaign was to discover the potential iron mineralization related to the geophysical anomalies of high magnetic susceptibility at depth.

The campaign began on July 25, 2012, and ended on August 24 of the same year. 3,256 meters were drilled distributed in 7 fdrills holes of approximately 465 meters in length, with a maximum of 496 meters and a minimum of 402 meters, and with a dip that ranged from almost vertical, -87 °, to totally vertical, -90 °.

The drillings yielded positive results for all the drillings, the iron intercepts confirm the results delivered by magnetometry, the most important intercepts are from the ARSI04 and ARSI07 drillings, with 52 and 36 meters long and average grades of 28.37%. and 21.98% of total iron respectively.