Resource Estimate
i-80 Gold drills 13.2 m of 40.4 g/t Au at Granite Creek

IAU · Price
Executive Summary
- i-80 Gold Corp. released high-grade assay results from its 2025 drilling campaign at the Granite Creek underground project, confirming robust mineralization in the South Pacific Zone (SPZ) and reinforcing potential for resource expansion to the north and at depth.
- The 2025 program consisted of 16,000 meters drilled across 46 holes, including infill drilling to support resource conversion and step-out holes to test expansion potential.
- These results will be integrated with 2023 and 2024 data to update the mineral resource estimate, which will serve as the basis for the Granite Creek underground feasibility study expected to be completed in Q1 2026.
Key Details
- Drilling Program Scope: 16,000 meters drilled over 46 holes between June 2025 and December 2025.
- Hole Composition: Included 40 infill holes and 7 step-out holes (6 additional infill holes were added to the original plan).
- Highlight Assay Results (Infill Holes):
- Hole iGU25-31: 40.4 g/t Au over 13.2 m.
- Hole iGU25-15: 31.3 g/t Au over 7.8 m.
- Hole iGU25-24: 15.0 g/t Au over 17.5 m.
- Hole iGU25-08: 12.8 g/t Au over 19.8 m.
- Current Resource Estimate (as of Dec. 31, 2024):
- Measured and Indicated: 261,000 ounces at 10.5 g/t Au.
- Inferred: 326,000 ounces at 13.0 g/t Au.
- Feasibility Study Timeline: The updated mineral resource estimate (incorporating 2023–2025 data) will form the basis of the feasibility study, expected to be completed in late Q1 2026 with results released in Q2 2026.
- Previous PEA Context: The March 2025 Preliminary Economic Assessment outlined an approximate eight-year mine life with average annual gold production of ~60,000 ounces following ramp-up.
- Future Plans: The company is evaluating an additional step-out and infill drilling campaign for the SPZ in 2026 as part of a multiyear program.
- Technical Personnel: Paul Chawrun, PEng (COO) and Tyler Hill, CPG (VP Geology) are the Qualified Persons.
- Laboratory: Samples analyzed by MSALABS (MSA) in Elko, Nevada, using CPA-Au1 (500-gram photon assay).
Notable Quotes
- "The 2025 infill drilling results at Granite Creek underground successfully support our geological model, confirming the continuity and high-grade nature of the deposit. The South Pacific zone remains open to the north and at depth and will continue to be tested through additional drilling in the coming years," stated Tyler Hill, vice-president of geology.
- "Importantly, these drill results reinforce our view that similar success could be achieved with the planned 2026 drill programs at Archimedes underground and Mineral Point open pit on the Ruby Hill property. This confidence is supported by comparable results from our Cove underground project, which shares a similar structural framework and sedimentary rock-hosted disseminated mineralization present within each of these projects."
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Jul 28, 2026 · 06:00