The protest over Gunnison was in the news recently. They have a website: http://gunnisonmine.org, and a twitter feed: https://twitter.com/dragoonarizona

I'm no expert, but it doesn't take much effort to research things like PEA's. I also assume that if the engineers are willing to produce a PEA on the inferred then it is good enough for some purposes of the industry. It might be good enough to sell as well.