pic is from CWRN diggings-as we know, 20-30 oz gold goes w every ca 35000 tons CWRN iron -not enough to economically separate. Gold mining is tough-even economical mines often have only 1-2 grams /ton. Many individuals try it but usually are disappointed- even the professional 2 man teams-w expensive trommels and sluices,only usually make a subsistence living working full time at it.