valeka2022-12-11T06:18:50+00:00 Placer County, CALost EmigrantCopperSilverView ProjectHighlights: USGS’ 1980 estimate indicated 250,000 tons totaling 77,000 oz Au. “Indicated and Inferred” resource of 270,000 tons averaging 0.27 opt gold. Additional resources may occur in unexplored vein offshoots. Historically, ore graded as high as 2-3 opt. View Project Details