Rio Alto produces 58,081 ounces of gold in Q2 2012

CALGARY, ALBERTA--(Marketwire - July 6, 2012) - Rio Alto Mining Limited ("Rio Alto") (TSX:RIO)(OTCQX:RIOAF)(LMA:RIO)(DBFrankfurt:MS2) is pleased to announce that its La Arena Gold Mine poured 58,081 ounces of gold during the three months ended June 30, 2012 (114,054 ounces of...