Cornerstone reports 1.34% copper and 58.0 g/t silver over 19.5 m in trenching at La Fortuna copper-silver project, Chile

MOUNT PEARL, NEWFOUNDLAND--(Marketwire - Aug. 30, 2011) - Cornerstone Capital Resources Inc. ("Cornerstone") (TSX VENTURE:CGP) (FRANKFURT:GWN) (BERLIN:GWN) (PINK SHEETS:CTNXF) announced today preliminary results for the ongoing exploration program at the La Fortuna copper-silver project located in the Valparaíso Region of central Chile, approximately...