▁p ump ing ▁water ▁from ▁the ▁nearby ▁Sir ba ▁River , ▁to ▁the ▁east ▁of ▁the ▁site , ▁as ▁well ▁as ▁a ▁large ▁res er voir ▁and ▁waste ▁p its . ▁ ▁The ▁first ▁year ’ s ▁production ▁is ▁predicted ▁to ▁be ▁ 1 3 5 , 0 0 0 ▁tro y ▁ oun ces ▁( 4 , 2 0 0   kg ; ▁ 9 , 2 6 0   lb ▁avoir du pois ) ▁of ▁gold ▁at ▁a ▁c ash ▁value ▁of ▁US D ▁ 1 7 7 ▁per ▁ ounce ▁($ 5 . 7 0 / g ). ▁The ▁mine ▁res erves ▁for ▁the ▁Sam ira ▁Hill ▁mine ▁total ▁ 1 0 , 0 7 3 , 6 2 6 ▁tons ▁at ▁an ▁average ▁grade ▁of ▁ 2 . 2 1   gram s ▁per ▁ton ▁from ▁which ▁ 6 1 8 , 0 0 0 ▁tro y ▁ oun ces ▁( 1 9 , 2 0 0   kg ; ▁ 4 2 , 4 0 0   lb ) ▁will ▁be ▁recovered ▁over ▁a ▁ 6 - year ▁mine ▁life . ▁S ML ▁bel ieves ▁to ▁have ▁a ▁number ▁of ▁significant ▁gold ▁depos its ▁within ▁what ▁is ▁now ▁recognized ▁as ▁the ▁gold ▁bel t ▁known ▁as ▁the ▁" Sam ira ▁Hor izon ", ▁which ▁is ▁located ▁between ▁G othe ye ▁and ▁O u all am . ▁ ▁Prior ▁to ▁production , ▁the ▁estimated ▁tot als ▁of ▁both ▁p its ▁were ▁ 1 0 . 0 8 ▁million ▁t