McEwen Mining , located in the state of Sinaloa in Mexico , acquired Minera Pangea in 2007 . Shortly thereafter , the mining industry experienced a transformational period of progress . The company ’ s administration experienced significant changes as well with the appointment of Euridice Gonzalez as the new general manager in August of 2007 . Gonzalez became one of the first females to hold the highest executive position in the sector . “ We decided to develop this site , and as a result , the company grew and it became feasible to open another mine ,” says Gonzalez , recalling the discovery of silver in the vicinity of the gold mine . Given the increase in metal prices in 2011 , the mining industry expanded , providing accelerated operations to Pangea with a new silver deposit and the revival of gold . By mid-2012 , Gonzalez took over as country manager for McEwen Mining Inc ., in Mexico . This period included an investment of 15 million dollars for the purchase of new equipment , the introduction of detailed engineering and the reopening of El Gallo phase I . That same year , another $ 180 million was invested into the development of El Gallo , “ we are working on reducing this capital expenditure ,” says Gonzales . Currently , they are exploring the site for mineral reserves , expanding production and remodeling their gridding minerals system .