BOCA RATON, Fla. – Lara Exploration (TSXV: LRA; US-OTC: LRAXF) has seven rigs turning at its Planalto copper-gold project in Brazil, a 14,000-metre test of whether the Carajás discovery can... The post Lara drills Planalto toward $1B Brazil copper test appeared first on The Northern Miner.