User talk:Riotinto-kuc

Need references
Your additions to Kennecott and Bingham Canyon are appreciated, but, especially for mine production figures, dates and references are needed.

Because you appear to be connected to Kennecott, perhaps you could help settle an ongoing discussion in Wikipedia over which is the world's "largest" open pit copper mine, Bingham Canyon or Chuquicamata. Both mines make the claim, but some hard numbers (areas or volumes) and an authoritative reference are needed to settle the matter. Thanks. Plazak (talk) 20:45, 9 July 2010 (UTC)