Calibre Announces Start of 5,000 Metre Drill Program at Rosita Copper-Gold-Silver Project, Nicaragua

VANCOUVER, BRITISH COLUMBIA--(Marketwire - Dec. 5, 2011) - Douglas Forster, Chairman of Calibre Mining Corp. (TSX VENTURE:CXB) (the "Company" or "Calibre") is pleased to announce that Alder Resources Ltd. ("Alder") (TSX VENTURE:ALR) has informed Calibre that drilling has commenced on Calibre's...