Although all the information below in the Introduction is Valuable Due Dilligence all found in one place, Frank Curzio's 2015 Report and Interview (Rob McEwen Unpluged) on June 24, 2016 (Linked Above) is a Great Starting Point.
Rob took GoldCorp from a $50 Million Company to a $10 Billion Company, his Shareholders went along for the Ride also, enjoying a 31% Annual Return for 10 Years Running. Rob was GoldCorp's Largest Shareholder, and likewise with McEwen Mining. He owns 25% of MUX Stock for which he Paid $127 Million. He takes No Salary ( well they did give him a raise this year in 2016 to $1.00 LOL ) he gets No Options and he is completely aligned with his Shareholders. He wakes up in the morning thinking how to create Shareholder Value.