Gold mineralization at the Black Fox Mine occurs in several different geological environments within the main carbonate alteration zone, which has a strike length of over 1,000 metres and a variable true width ranging from 10 metres to over 100 metres. This mineralized envelope occurs primarily within komatiitic ultramafics and lesser mafic volcanics within the outer boundaries of the PDDZ. The auriferous zones have several modes of occurrence, from concordant zones that follow lithological contacts and have been subsequently deformed, to slightly discordant zones associated with syenitic sills and quartz veins or stockworks.

The Black Fox Mine deposit has an overall first order south-southwest plunge (SSE in mine grid) with a second order westerly internal gold mineralization plunge. The first order plunge is parallel to stretching/intersection lineations and dominant folds, plus the local elongation of units. The second order plunge is at a high angle to the stretching lineation and controlled by stacking of S-SW dipping (to true north) reverse shear vein systems, vein arrays and shear zones which dip more shallowly to the south than the overall dip of the ultramafic host unit and faults that are parallel to it, and are stacked vertically within carbonate-talc-chlorite altered parts of the ultramafic unit (Rhys, 2016). This secondary ore control could be controlled by the north verging drag folds (Chappell, 2018).

Work carried out to date has identifi ........

The production rate is based on available stopes as of October 31, 2017 (the time that the assets were transferred from Primero to McEwen Mining Ontario). Consequently, the mine has a variable monthly mining rate, averaging approximately 500 tonnes per day. The average ounces recovered at the mill per day is approximately 140, which is equal to an average of 4,200 ounces per month over the 26 months in the LOM.

LOM development requirements are approximately 4,400 metres total. This development consists of 935m of ramps, and 2,030 metres of lateral development, 1,280 metres of sills and 140 metres of raises.

The mine is accessed by a portal located at a bench at a depth of 87 metres within the Black Fox Pit.

Stopes are typically mined in 15-metre lengths along the strike with widths varying from 5 up to 20 metres.

The mining method is long hole retreat. The stope sequencing has generally been top-down as new ore is found at depth.

Cemented hydraulic backfill is used in almost all stopes. Stopes are mined in alternating sequence using backfilled stopes as pillars for subsequent mining of adjacent stopes.

Ore mined is crushed and hauled to the mill.

The Froome mine, which is part of the overall Fox Complex, is accessed from two declines at the bottom of the Black Fox pit and situated approximately one-half mile west of the ceased Black Fox mine. As was the case with the Black Fox deposit, the min ........

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