The setting of the TWM is characteristic of mesothermal Archean shear-hosted gold deposits. Dube and Gosselin (2007) have summarized the general consensus that greenstone-hosted quartz-carbonate vein deposits are related to metamorphism, partial melting, and thermal re-equilibration of subducted volcano-sedimentary terrains. Deep-seated, gold-transporting fluids were channeled to higher crustal levels through major crustal faults or deformation zones, similar to the Destor- Porcupine Fault Zone located about 5km south of the TWM. Enrichment of these mineralizing hydrothermal fluids was likely derived from the leaching of various components, most notably gold, from the volcano-sedimentary country rocks during fluid transport and ascension. The fluids then precipitated as vein material or wallrock replacement in second and third order structures at higher crustal levels through fluid-pressure cycling processes and other physicochemical reactions (temperature, pH, fS2, and fO2 changes).

Gold mineralization in the TWM occurs in steep north-northwest plunging mineralized zones which are also parallel to the local L4 stretching lineation. Mineralization occurs within, or adjacent to zones of strong deformation such as the Holmer and Rusk Shear Zones. Mineralization at the Timmins Deposit is hosted in multiple generations of quartz-carbonate-tourmaline (± albite) veins, associated pyrite alteration envelopes, and disseminated pyrite mineralization. Textural evidence sugge ........

The Timmins West includes three mineralized gold deposits; the Timmins Deposit, Thunder Creek Deposit, and 144 Gap Deposit.

The Timmins Deposit mineral resource extends from near surface (surface is at 10,015m elevation on the mine grid) to approximately 1,525m below surface. There are three main geological mineralized zones; Vein Zone, Footwall Zone, and Ultramafic Zone. Each zone is further comprised of smaller zones, separated by waste rock. The zones vary in transverse width from 1.5m to approximately 30m. Generally, the mineralized domain strikes east-west and dips 55 degrees to the north, although locally individual zones are shallower dipping.

The Thunder Creek mineral resource is approximately 750m south of the Timmins Deposit and extends from 190m to 970m below surface. Thunder Creek consists of the Rusk Zone and the Porphyry Zone and is generally massive, striking east-west and dipping 60 degrees to the north.

The 144 Gap mineral resource is approximately 900m southwest of the Thunder Creek Deposit and extends from 600m to 1,070m below surface with a strike length of approximately 395m. The mineralized domains dip approximately 70 degrees northeast.

The existing underground infrastructure at the TWM includes:
• The 5.5m diameter, 710m deep production shaft.
• Main shaft stations at the Timmins Deposit 200L, 400L, 525L, and 650L.
• Ore and waste rockbreakers and bins at 650L, and a loading pocket at 670L.< ........

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