i-80 GOLD CORP. announced that rehabilitation of underground drill bays is completed and underground drilling has commenced at the Company's Granite Creek ("Granite Creek" or "the Property") property located in Humbolt County, Nevada. The Granite Creek Mine Project hosts both open pit and underground resources and is strategically located proximal to Nevada Gold Mines' Twin Creeks and Turquoise Ridge mines at the north end of the Battle Mountain-Eureka Trend at its intersection with the Getchell gold belt in Nevada. The Company has launched its 2021 surface and underground drilling program at Granite Creek that is expected to consist of approximately 22,000 metres of drilling. The primary goal of the 2021 drill program is to advance underground and open pit opportunities to production. Underground drilling will be focused on delineating sufficient resources for developing a near–term development and mining plan. Ongoing surface drilling will also test near-surface mineralization for metallurgical purposes and open pit definition to advance permitting for open pit mining including heap leach processing on-site.