Helium - Thanks for posting the most up-to-date and most detailed map of claims staked in the Ring of Fire!  Great map!  As for your question about "2 cents" - since you are from Belgium, as I understand, I'm guessing that your question is as to the meaning of this English expression.  When someone says, "that is my 2 cents on the subject" they are saying basically "that is my opinion on the subject" in an expression of humility, acknowledging that, as 2 cents is only a small part of a dollar, their opinion may be only worth that much to the discussion at hand.