Revival Gold’s deeper Joss zone: grade, geometry and capex notes for mine planners
Reviewed by Joe Ashwell

First reported on MINING.com
30 Second Briefing
Revival Gold has extended the Joss underground sulphide zone at the Beartrack-Arnett project in Idaho to about 850 m depth, adding 240 m of vertical extent, with key intercept BT26-254D returning 147.2 m at 2.37 g/t Au from 808 m, including 5.9 m at 14.89 g/t and 4.7 m at 9.31 g/t. All eight 2026 pierce points hit the Panther Creek shear zone, supporting an inferred resource of 6.75 Mt at 4.05 g/t (877,000 oz) with true widths of 2–20 m over 1.2 km strike, open at depth. Analysts now see potential for a higher-grade underground start at Joss ahead of the Beartrack-Arnett heap leach restart, which is currently scoped for 65,300 oz/y over eight years at $1,248/oz AISC and $109 million initial capex.
Technical Brief
- Hole BT26-252D returned 62.2 m at 3.12 g/t Au from 538 m, including 19.1 m at 6.37 g/t.
- BT26-253D cut 6.8 m at 4.02 g/t Au from 539.5 m, while BT26-251DA hit 4.1 m at 4.47 g/t from 718.9 m.
- Joss mineralisation is hosted in a north–south shear structure with high-grade zones showing true widths of 2–20 m over 1.2 km strike.
- Beartrack-Arnett 2023 PFS for the heap leach restart gives post-tax NPV US$484 m and 80% IRR at US$3,000/oz Au, from US$109 m initial capex.
- Mercur’s 2025 PEA outlines 10-year open-pit heap leach output of ~100,000 oz/y Au, with US$208 m initial capex and after-tax NPV rising from US$295 m at US$2,175/oz to US$1.3 bn at US$4,000/oz.
Our Take
The combined 3.2 Moz measured and indicated plus 2.8 Moz inferred gold across Beartrack-Arnett and Mercur puts Revival Gold towards the upper end of single-operator gold resource holders in our recent North American project coverage, which can make the C$203.6 million market capitalisation look modest on a per-ounce basis for developers with positive economic studies.
Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.
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