McEwen’s Tartan gold project resource: restart scale and mine planning notes
Reviewed by Tom Sullivan

First reported on MINING.com
30 Second Briefing
McEwen has reported a new resource for the Tartan gold project in Flin Flon, Manitoba, of 2.62 million indicated tonnes at 3.67 g/t (308,900 oz.) and 2.83 million inferred tonnes at 3.32 g/t (302,700 oz.) at a 1.35 g/t cut-off, supporting a restart targeting at least 30,000 oz. per year. The 26.7 sq. km property hosts a historic 450 t/d plant, decline access and developed blocks in the main and south zones, with metallurgical test work and underground mine planning in progress and scope to double plant throughput to 45,000-55,000 oz. annually. McEwen has allocated C$6 million in 2026 for near-mine and regional drilling on the main zone flanks and Tartan West to grow the resource as it works towards a 250,000-300,000 oz. group production target by 2030.
Technical Brief
- Existing 450 t/d plant and decline access allow brownfield restart with limited new underground development.
- Historic operation (1987–1989) produced ~47,000 oz, providing reconciliation data for future resource-to-reserve conversion.
- Tartan property spans 26.7 km² over 20 mineral claims in the Flin Flon Greenstone Belt.
- McEwen acquired Tartan via takeover of Canadian Gold Corp. completed in October, consolidating Canadian gold assets.
- C$6 million 2026 drilling budget targets western/eastern flanks of main zone, vertical extensions and Tartan West.
- Underground mine planning is leveraging similarities in ramp access and mining method to McEwen’s Fox Complex in Ontario.
- Group output from Fox, Gold Bar and San José is forecast at 114,000–126,000 oz in 2026, before adding El Gallo.
Our Take
McEwen’s work at the Tartan gold project in Manitoba sits alongside a busy project pipeline in our database, which also includes the Froome mine in Ontario and the El Gallo project in Mexico, suggesting the company is spreading technical and exploration risk across several jurisdictions rather than relying on a single flagship asset.
The indicated and inferred gold grades reported for the Tartan mine project are broadly in line with other underground gold assets in our coverage, but the relatively modest 450 t/d existing plant capacity implies that any move to restart or expand would likely focus first on incremental debottlenecking rather than a greenfield-scale plant build.
With a C$6 million exploration budget at Tartan and recent M&A activity around the Gold Bar complex in the US, McEwen appears to be using both drilling and bolt-on acquisitions to bulk up its gold resource base ahead of 2030, a pattern echoed in several of the 1083 Mining stories where mid-tier producers are trying to secure longer-life pipelines.
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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