Project Overview
Granite Creek hosts both high grade open pit and underground mineral resources that remain open for expansion. The underground mine at Granite Creek is fully permitted and has been rehabilitated to expedite the development process.
In November 2021, i-80 released results of a PEA for Granite Creek confirming the substantial economic opportunity that can be realized through the development of both open pit and underground mines. The PEA notes construction of a heap leach and CIL facilities on the property for the open pit and trucking refractory material for third party processing. Current M&I resource estimates from the PEA include 1,245,000 gold ounces at 1.42 Au g/t for the open pit and 337,000 gold ounces at 10.4 Au g/t for the underground over a nine-year mine life.
Since release of the PEA*, i-80 has made significant progress advancing the project including commencement of a major surface and underground drill program (~20,000 meters),completing additional underground development and commencing test mining in advance of making a production decision for the underground mine.