1 9 6 8 . ▁During ▁that ▁period ▁ 6 5 , 7 7 8 , 2 3 4 ▁tons ▁were ▁mil led , ▁producing ▁ 1 9 , 3 2 7 , 6 9 1   oun ces ▁of ▁gold , ▁indicating ▁an ▁overall ▁grade ▁of ▁ 0 . 2 9 . ▁The ▁value ▁of ▁the ▁gold ▁produced ▁is ▁placed ▁at ▁$ 5 6 4 . 7 ▁million . ▁ ▁Hol ling er ▁Cons olid ated ▁Gold ▁M ines ▁was ▁later ▁acquired ▁by ▁Canadian ▁ty co on ▁E . ▁P . ▁Taylor ' s ▁Arg us ▁Corporation . ▁Arg us ▁was ▁later ▁acquired ▁by ▁Con rad ▁Black ▁in ▁ 1 9 7 8 ▁and ▁it ▁would ▁become ▁today ' s ▁Hol ling er ▁In cor por ated . ▁▁ ▁F ounded ▁ 1 9 1 0 ▁as ▁Hol ling er ▁Gold ▁Mine ▁ ▁Ch anged ▁to ▁Hol ling er ▁M ines ▁ ▁Ch anged ▁to ▁Hol ling er ▁Arg us ▁Limited ▁ 1 9 7 8 ▁ ▁Ch anged ▁to ▁Hol ling er ▁Inc . ▁in ▁ 1 9 8 5 ▁ ▁Hol ling er ▁Mine ▁ ▁Rum ors ▁of ▁gold ▁in ▁the ▁Por cup ine ▁area ▁had ▁been ▁circul ating ▁for ▁some ▁time , ▁but ▁every ▁attempt ▁to ▁start ▁production ▁had ▁resulted ▁in ▁poor ▁returns . ▁In ▁June ▁ 1 9 0 9 ▁a ▁group ▁of ▁prospect ors ▁found ▁a ▁rich ▁ve in ▁that ▁would ▁eventually ▁become ▁the ▁D ome ▁Mine , ▁but ▁at ▁the ▁time ▁it ▁too ▁remained ▁und e