The Project mining leases area, which hosts both the Côté and Gosselin deposits, contains calc alkalic pyroclastic metavolcanic rocks of felsic to intermediate composition, felsic to intermediate intrusive rocks (predominantly tonalite and diorite) of the CIC, and related migmatites. Siragusa’s remapping (1993) and the Ayer and Trowell (2002) Compilation Map P3511 depict granitoid rocks as the dominant lithology. Recent mapping by Gemmell and MacDonald (2017) provide the most up to date Geological Survey coverage of the mining leases area. Laird (1932) noted that, locally, the granitoid varies considerably in texture and composition and contains inclusions of older rocks. The texture varies from granular to porphyritic, while in other areas it has the appearance of a quartz porphyry phase of the granite.

The Côté deposit is a new Archean low grade, high tonnage gold (± copper) discovery. It is described as a synvolcanic intrusion related and stockwork disseminated gold deposit (Kontak et al., 2012, Katz et al., 2015, Dubé et al., 2015, Katz, 2016). Deposits of this type are commonly spatially associated with and/or hosted in intrusive rocks. They include porphyry copper-gold, syenite associated disseminated gold and reduced gold-bismuth-tellurium-tungsten intrusion related deposits, as well as stockwork disseminated gold.

The Gosselin deposit, similar to the Côté deposit, is also hosted in the synvolcanic CIC and most of its mineralization lies within hy ........

The mine plan is designed as a truck-shovel operation assuming 212 t autonomous trucks and 34 m3 shovels. The pit design includes five phases to balance stripping requirements while satisfying concentrator requirements.

The Côté deposit is planned to be mined in five phases included within the ultimate pit limit. The schedule was developed in quarters for the pre-production period for the first five years of production, then in annual periods. The scheduling constraints establish the maximum mining capacity at approximately 70 Mtpa and the maximum number of benches mined per year at eight in each phase. Additional constraints were used to guide the schedule and to obtain the desired results. Examples of these additional constraints include feeding lower grade material during the first months of the plant ramp up schedule, the maximum stockpile capacity, and reducing the mining capacity in later years to balance the number of trucks required per period.

The design parameters include a ramp width of 36 m, maximum road grades of 10%, bench height of 12 m, berm height interval of 24 m, geotechnical catch bench of 20 m if height is greater than 150 m, a minimum mining width of 40 m, and variable slope angles and berm widths by sector.

The smoothed final pit design contains approximately 235 Mt of ore at 0.95 g/t Au and 575 Mt of waste for a resulting stripping ratio of 2.4:1. The total LOM mill feed is 233 Mt at 0.96 g/t Au, constrained by TMF cap ........

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