Fortitude Gold’s County Line and Scarlet South: mine plan and schedule notes for engineers
Reviewed by Joe Ashwell

First reported on MINING.com
30 Second Briefing
Fortitude Gold has begun mining at its County Line project in Nevada, trucking initial mineralisation from the base of the historic County Line Pit to the existing Isabella Pearl heap leach and ADR plant, with a major pit layback scheduled for H2 2026–H2 2027 and an updated resource to incorporate East Pit drilling. Exploration targets at Newman Ridge, the Rex mine and areas north and south of the current pits are being evaluated to extend mine life. All permits are now in place for the Scarlet South open pit, 500 m northwest of Isabella Pearl, with ore from Isabella Pearl deep, County Line and Scarlet South planned to feed the central processing facility from 2026.
Technical Brief
- Initial County Line ore is sourced from the floor of the historic County Line Pit.
- County Line comprises two legacy open pits (County Line Pit and East Pit) within a 9,000‑acre land package.
- East Pit drilling completed after the 2022 Mineral Resource is now being incorporated into an updated estimate.
- Exploration targets span north of County Line Pit, south of East Pit, Newman Ridge to the east, and the historic Rex mine further south.
- Scarlet South is fully permitted by both the US Bureau of Land Management and Nevada Division of Environmental Protection.
- Scarlet South is an open‑pit operation sited ~500 m northwest of the existing Isabella Pearl heap leach and ADR plant.
- Mine development at Scarlet South is scheduled to move from permitting to active operations within “the coming weeks”.
- Fortitude’s hub‑and‑spoke strategy reduces capex by avoiding duplicate processing plants and centralising heap leach/ADR infrastructure.
Our Take
Using the existing Isabella Pearl gold processing facility and heap leach pad for County Line and Scarlet South in Nevada’s Walker Lane Mineral Belt signals a low-capex, hub-and-spoke strategy that many smaller US gold operators in our database are adopting to extend mine life without major plant builds.
The planned pit layback phases at County Line into the second half of 2026–2027 suggest Fortitude Gold is trying to smooth ore feed as Isabella Pearl winds down, a pattern seen in several other Nevada gold items where sequencing satellite pits is used to avoid mill downtime and workforce disruption.
With 207 keyword-matched pieces on gold and critical minerals in our coverage, Nevada projects like County Line and Scarlet South stand out as US-based options at a time when a number of other gold and copper developments are in higher-permitting-risk jurisdictions, which may help Fortitude’s assets attract premium financing or offtake interest.
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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