▁grad ing ▁ 2 . 2 ▁g / t ▁Au ▁( ore ), ▁from ▁which ▁it ▁was ▁project ed ▁ 6 1 8 , 0 0 0 ▁tro y ▁ oun ces ▁would ▁be ▁produced ▁in ▁the ▁estimated ▁ 6 . 2 ▁years ▁of ▁mine ▁life . ▁E tr us can ▁has ▁project ed ▁that ▁the ▁K oma ▁Bang ou ▁depos it ▁contains ▁reserve ▁of ▁ 3 1 5 0 0 0 ▁o z ▁of ▁gold . ▁ ▁In ▁ 2 0 0 8 , ▁S ema fo ▁announced ▁it ▁had ▁discovered ▁two ▁new ▁possible ▁mine ▁sites ▁on ▁its ▁con cess ions , ▁to ▁the ▁east ▁and ▁west ▁of ▁its ▁current ▁mines . ▁S ik ia ▁ 1 , ▁ 1   km ▁in ▁length , ▁is ▁sout heast ▁of ▁Lib iri ▁pit , ▁while ▁Lib iri ▁Pl ate au , ▁n ortheast ▁of ▁the ▁Lib iri ▁pit , ▁runs ▁ 5 0 0 ▁meters . ▁It ▁is ▁thought ▁the ▁immediate ▁are ▁could ▁produce ▁p its ▁ 1 0   km ▁east ▁and ▁west ▁of ▁the ▁current ▁site . ▁ ▁References ▁ ▁External ▁links ▁SE MA FO : ▁Niger ▁Oper ations ▁( o fficial ▁site ). ▁The ▁Sam ira ▁Hill ▁Gold ▁Mine : ▁E tr us can ▁Resources ▁Inc . ▁( o fficial ▁site ). ▁ ▁Category : M ines ▁in ▁Niger ▁Category : E conom y ▁of ▁Niger <0x0A> </s> ▁C umber land ▁House ▁Airport , ▁, ▁is ▁located ▁ ▁west ▁of ▁C umber land ▁House , ▁S ask atch ew an