Yamana Increases Mineral Reserves by 11%

TORONTO, ONTARIO--(Marketwire - Feb. 22, 2012) - TORONTO, ONTARIO--(Marketwire - Feb. 22, 2012) - YAMANA GOLD INC. (TSX:YRI)(NYSE:AUY)(LSE:YAU) ("Yamana" or "The Company") today announced its mineral reserves and resources for the year ended December 31, 2011. The Company's total gold equivalent...