Copper...what's a pound in the ground worth?Any guesses? If we say there's 20 billion lbs in the ground what's that worth at $5 copper? This is a reasonable metric for valuation of a mining project. It's done all the time on developing gold mines. At $5 copper what's the NPV of Nevada Copper if you discount it all out into the future? 25 billion$ 40 billion? 100 billion? Is a pound in the ground worth 50 cents? 10 cents?