The property straddles the Mustajärvi Shear Zone (MSZ), a major right-lateral shear zone.  This shear was subsequently cross-cut by additional structures which further dissect the project into separate structural zones. FireFox has developed a structural model that has identified areas where these structures have been deformed, causing expansion (“dilatant zones”) along the MSZ, where higher concentrations of gold can occur. Three of these zones have been confirmed to host high-grade (>4 g/t) gold in quartz-carbonate-tourmaline (QCT) veins with abundant pyrite.

The historical “Central Zone” of gold mineralization at Mustajärvi was the first of the zones to be identified. During the 2019 and 2020 seasons, exploration drilling by FireFox advanced to the northeast from the Central Zone and resulted in the identification of the Northeast Target. In 2021, the predictive 3-d modeling of the dilatant zones identified the East Target, which was first confirmed by gold intercepts in two holes drilled 650 metres further to the northeast.

The project now hosts gold-bearing drill intercepts over 2.1 kilometres. In addition, FireFox has now drilled twelve holes that returned > 90 gram-metres of gold mineralization, with five holes returning >200 gram-metres of gold, from three different target areas at Mustajärvi. These intercepts occur along more than 1.5km strike of the shear zone.   Examples of bonanza intervals include:

Hole 22MJ021 in the East Target returned a 15.5-metre interval averaging 13.09 g/t gold. Expressed in terms of grade-thickness, this interval alone measures over 200 gram-meters of gold.

Hole 21MJ001 in the Northeast Target hosts visible gold and cut 1.35m averaging 93.88 g/t gold, including 0.65m at 129.5 g/t gold. Including two additional high-grade gold intervals of 5.27 g/t and 26.9 g/t, this drill hole returned a total grade thickness of more than 150 gram – metres of gold.

On-going drill programs continue to test for new mineralization along strike and at depth.

For details on the program in progress please refer to the News Releases or the latest Presentation.