i-80 GOLD CORP. announced results from the final hole drilled in the Phase 1, 2021, surface drill program focused on delineating the high-grade "South Pacific" extension horizon at the Company's Granite Creek Property ("Granite Creek" or "the Property") located in Humboldt County, Nevada. The South Pacific Zone ("SPZ") is a new zone of high-grade gold mineralization located immediately north of the underground mine workings at Granite Creek.

In 2021, sixteen (16) holes were drilled to test the SPZ (including one hole that was abandoned prior to reaching target depth), successfully defining multiple fault structures that are demonstrating continuity of mineralization over a strike length of approximately 600 metres and a dip length of approximately 250 metres that remains wide open for expansion along strike and at depth. Hole iGS21-18 was drilled in the southern portion of the horizon, closer to the underground workings, and as in several previous holes returned impressive gold grades and widths of mineralization in multiple horizons. Highlight results from hole iGS21-18 in the South Pacific Zone (and adjacent horizons): 16.3 g/t Au over 15.7 m (0.48 oz/ton Au over 51.5 feet); 33.7 g/t Au over 3.7 m (0.98 oz/ton Au over 12.0 feet).

The SPZ is the priority target of the ongoing surface drill program at Granite Creek and will be included in a resource update following the 2022 program. SPZ consists of multiple subvertical fault structures located within both the Upper and Lower Comus rock units that appear to trend north to northeast. Continued step-out drilling to expand mineralization both along strike and at depth is being completed in 2022.

High-grade mineralization at Granite Creek occurs in a near-identical geological setting as that at the multi-million-ounce Turquoise Ridge Mine located immediately to the north; proximal to a major regional fault (the Getchell or Range Front fault) on the eastern edge of the large Osgood Mountains intrusive complex. The Granite Creek deposit remains open at depth and along strike from the existing underground workings. All samples were submitted to ALS Minerals (ALS) of Sparks, NV, which is ISO 9001 and 17025 certified and accredited laboratories, independent of the Company.

Samples submitted through ALS are run through standard prep methods and analyzed using Au-AA23 (Au; 30g fire assay) and ME-ICP41 (35 element suite; 0.5g Aqua Regia/ICP-AES) for ALS. ALS also undertakes their own internal coarse and pulp duplicate analysis to ensure proper sample preparation and equipment calibration. i-80 Gold Corp.'s QA/QC program includes regular insertion of CRM standards, duplicates, and blanks into the sample stream with a stringent review of all results.