Nevada edged out Arizona as the top non-fuel mineral producer in 2009, with total value of $5.51 billion vs $5.42 billion. Utah was third with $4.0 billion in production. Arizona produced 9.5% of all mineral value in the nation.
Nationwide, the value of metal production declined 22% while total mineral production dropped 18% to $35.8 billion.
These numbers come from the newly released USGS Mineral Commodity Summaries 2010. There's a good summary analysis posted on Mineweb.com today as well.
Copper production declined last year by 120,000 tons vs the expected increase of 200,000 tons. USGS says 20 mines accounted for 99% of US production.
One surprising aspect of this is that the USGS apparently released this report with no announcement. It seems to have just been posted quietly.
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