 TNR Gold Corp TSX-V:TNR, OTC:TRRXF has updated on progress at the Los Azules copper project in Argentina held by McEwen Mining - an asset which could be bigger and more valuable than stated previously and where TNR holds a net smelter returns NSR royalty. The company has a 0.4 NSR royalty on the property, including a 0.04 NSR held on behalf of a shareholder. 