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Get filing alertsi-80 Gold reports high-grade drill results at Archimedes, delays feasibility studies to Q3
Filed July 1, 2026 · Period ending June 25, 2026 · ~1 min read
Key Changes
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high
Archimedes infill drilling returned 16.2 g/t Au over 56.4m and 21.9 g/t Au over 20.2m, confirming continuity and expansion beyond current resource boundaries; 8,500m campaign completed on schedule and budget.
Item 7.01 verify on EDGAR → -
high
First gold from Archimedes remains on track for Q4 2026; construction advancing on schedule above 5,100-foot level with costs in line with budget.
Exhibit 99.1 view on EDGAR → -
medium
Feasibility studies for Granite Creek and Cove underground projects delayed from Q2 to Q3 2026 to optimize development sequencing across Phase 2 and Phase 3 projects.
Exhibit 99.1 view on EDGAR → -
medium
New 55,000m infill drilling program commenced in Q2 2026 targeting lower 426 zone and Ruby Deeps with five rigs operating and two more arriving in July; supports feasibility study planned for late Q1 2027.
Exhibit 99.1 view on EDGAR → -
medium
Current Archimedes resource stands at 436,000 oz Au Indicated (7.6 g/t) and 988,000 oz Au Inferred (7.3 g/t) as of December 31, 2025, with majority hosted in Ruby Deeps below 5,100-foot elevation.
Exhibit 99.1 view on EDGAR →
Summary
i-80 Gold disclosed strong drill results from its Archimedes Underground project, with intercepts including 16.2 g/t gold over 56.4 meters confirming mineralization continuity and expansion beyond existing resource boundaries. The 8,500-meter infill campaign was completed on schedule and budget, and the company has launched a larger 55,000-meter program with seven drill rigs to support a feasibility study targeted for late Q1 2027. First gold production from Archimedes remains on track for Q4 2026, with construction advancing as planned and costs meeting budget expectations.
The company delayed feasibility studies for its Granite Creek and Cove underground projects from Q2 to Q3 2026, citing ongoing optimization of development sequencing across its multi-phase plan. For retail holders, the high-grade drill results reinforce Archimedes' resource quality and the project's near-term production timeline, while the feasibility delay represents a modest schedule adjustment rather than a material setback. The current resource base of 1.4 million ounces (Indicated plus Inferred) at over 7 g/t provides a foundation for the upcoming feasibility work, with the expanded drilling program likely to support resource growth.
Section-by-Section Diff
Event · Exhibit 99.1
Added in current filing · view on EDGAR →
16.2 g/t Au over 56.4 m in hole iAU26-09 (sulfide)
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21.9 g/t Au over 20.2 m in hole iAU26-11 (sulfide)
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11.0 g/t Au over 26.1 m in hole iAU26-13 (sulfide)
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7.3 g/t Au over 33.1 m in hole iAU26-08 (sulfide)
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5.4 g/t Au over 56.5 m in hole iAU26-17 (oxide)
The Company disclosed assay results from its 2025-2026 infill drill campaign at the Archimedes Underground Project, showing high-grade gold mineralization across multiple drill holes. The results confirm continuity of mineralization in the upper 426 zone and demonstrate expansion beyond the current mineral resource estimate boundaries. The Company completed approximately 8,500 meters of drilling across 40 drill holes on schedule and budget.
Added in current filing · view on EDGAR →
Further, as the Company continues to optimize the sequencing of its development plan, the timing of feasibility-level technical studies for Granite Creek underground and Cove underground is being extended from the second quarter of 2026 to the third quarter of 2026.
The Company delayed feasibility-level technical studies for Granite Creek underground and Cove underground from Q2 2026 to Q3 2026. The delay is attributed to ongoing work to optimize the sequencing of gold projects within Phase 2 and Phase 3 of the development plan. The studies are being prepared in accordance with NI 43-101 and S-K 1300.
Added in current filing · view on EDGAR →
An infill drilling program largely within the lower portion of the 426 zone and Ruby Deeps zone commenced in the second quarter of 2026, targeting approximately 55,000 meters planned across 140 drill holes in support of the planned Archimedes Feasibility Study. Five underground drill rigs have been mobilized, with two additional underground drill rigs expected to arrive on site in July.
The Company commenced a new infill drilling program in Q2 2026 targeting approximately 55,000 meters across 140 drill holes in the lower 426 zone and Ruby Deeps zone. Five underground drill rigs have been mobilized with two more expected in July. The program supports an anticipated Archimedes feasibility study planned for completion late in Q1 2027, and will incorporate approximately 65,000 meters of drilling total.
Added in current filing · view on EDGAR →
The Project is fully permitted for the area above the 5,100-foot level, where construction continues to advance on schedule, supported by favourable ground conditions and minimal new infrastructure. Project costs are in line with budget expectations. The Company continues to expect to achieve first gold from Archimedes in the fourth quarter of 2026.
The Company confirmed that Archimedes Underground development remains on schedule with first gold expected in Q4 2026. Construction is advancing on schedule above the 5,100-foot level with project costs in line with budget. Permitting for the area below the 5,100-foot level is underway with anticipated completion by mid-2027, though the planned start of mining above that level is fully supported by existing permits.
Added in current filing · view on EDGAR →
As of December 31, 2025, Archimedes hosts an Indicated Mineral Resource of 1.8 million tonnes containing 436,000 ounces of gold grading 7.6 grams per tonne and an Inferred Mineral Resource of 4.2 million tonnes containing 988,000 ounces of gold grading 7.3 grams per tonne
The Company disclosed the current mineral resource estimate for Archimedes as of December 31, 2025. The Indicated Mineral Resource totals 1.8 million tonnes containing 436,000 ounces of gold at 7.6 g/t, while the Inferred Mineral Resource totals 4.2 million tonnes containing 988,000 ounces of gold at 7.3 g/t. The majority of current mineral resources are hosted in the Ruby Deeps zone below the 5,100-foot elevation.
Event · Item 7.01 — Regulation FD Disclosure
Item 7.01 — Regulation FD Disclosure filed; see Key Changes for terms.
Added in current filing · verify on EDGAR →
i-80 Gold Announces Additional High-Grade Assay Results from Archimedes Underground Including 16.2 G/T AU Over 56.4 Meters
The company disclosed additional high-grade assay results from its Archimedes Underground project, including an intercept of 16.2 grams per tonne gold over 56.4 meters. This represents continued exploration success at the underground deposit and may support resource expansion or mine planning.
Added in current filing · verify on EDGAR →
Updates Timing of 2026 Technical Studies
The company updated the timing of its 2026 technical studies, though specific details are not provided in the 8-K body. This could affect the timeline for project development decisions or resource estimates at Archimedes or other properties.
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Figures/quotes linked to EDGAR · Narrative written by AI · Jul 2, 2026 · How we verify