Here's a related story.  While reading recall that the three most important elements at Hay Mountain are thought to be Copper, Gold, and Molybdenum in that order.  This means that rising values in other metals are important too.

http://www.mining.com/mining-stocks-rally-copper-price-hits-7-month-high/

Also of interest may be this update on the Pebble project in Alaska.

http://www.mining.com/prospects-alaskas-pebble-project-look-draft-environmental-impact-statement-released/

VP looking at snow in AZ