Black Fox

McEwen Mining Inc.




2010 / 11 / 09




8% Au and 6.3% Au on Black Fox Extension including a portion of the Pike River concessions

Ongoing Payment:


The Black Fox Mine is located outside of Matheson, Ontario in the Timmins Gold District. Black Fox began operating as an open pit mine and transitioned to underground operations in 2011. Underground ore is extracted using a combination of long hole stoping, cut and fill, and narrow vein mining methods. Ore is accessed from a series of declines branching off from the main ramp to surface. The underground mine at Black Fox begins at the bottom of the open pit approximately 200 metres below surface and is expected to extend to more than 800 metres in depth.

Ore mined at Black Fox is transported to the Black Fox mill, located 28 km away, and is fed into a 2,400 tpd grinding circuit which includes a two-stage closed circuit ball mill. Soluble gold is recovered by adsorption on activated carbon using carbon-in-column, carbon-in-leach, and carbon-in-pulp processes yielding recoveries of 90% to 95% on average.

McEwen announced results from a Preliminary Economic Assessment for the Fox Complex in January 2022 and released an updated Mineral Resource Estimate for the Froome Mine. The Measured & Indicated Resources as of July 2021 are 194 kozs of gold contained in 1.43 Mt at a grade of 4.22 g/t (2.35 g/t gold cut-off) and Inferred Resources are 29 kozs of gold contained in 276 kt at a grade of 3.32 g/t (2.35 g/t gold cut-off).

As of December 2020, the Proven & Probable Mineral Reserve at Black Fox underground was 14 kozs of gold contained in 0.10 Mt at a grade of 4.05 g/t (3.64 g/t gold cut-off).

Recent Activity

    December 2022

    Exploration at Froome has successfully extended the life of mine by another year. Based on present data, mining at Froome will continue into 2025. An aggressive exploration program is planned for 2023 at the Fox Complex, with a focus on definition of near-term resources at the Stock property.

    April 2022

    Exploration at the Fox Complex is focused on expanding known Mineral Resources with the objective to shorten the payback period outlined in the Fox Complex Preliminary Economic Assessment. The Stock property, which was discovered in 2019, has seen success in the area adjacent to the former Stock mine. This has opened the potential for near term production from a shallow depth and close to the existing mill.

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