Mepụta ụdị nke ahịrịokwu a nke dị mgbagwoju anya Usoro ahụ gara n'ihu n'ebe ọwụwa anyanwụ site na Hay River, NWT, n'akụkụ ụsọ oké osimiri ndịda nke Great Slave Lake, ruo ebe a na-egwupụta ihe na Pine Point Mine.
N'ezie, ụdị nkebi ahịrịokwu ahụ dị mgbagwoju anya bụ "Otu ahịrị ahụ gara n'ihu n'ebe ọwụwa anyanwụ site na Hay River, NWT, n'akụkụ ụsọ oké osimiri ndịda nke Great Slave Lake, ruo ebe a na-egwupụta akụ na Pine Point, agbanyeghị na e mechara hapụ ngalaba a na 1992 ozugbo ebubata ihe ndị ahụ sitere na ebe a na-egwupụta ihe mechiri emechi kwụsịrị. "