Doubloon 2000I see from your postings you have no concept of mining. Please don,t post about things you do not understand .Cubic yards is a term for placer operations not hard rock.Bonanza grades are meaning less because of the dilution! At a grade of 15 oz per ton with silver at 20.00 oz the mine at the best will break even shipping the stockpile by rail to a smelter.The ore drilled off underground will need silver price above 40.00 oz to break even. My opinion only!