The Cowichan Centre occurrence is located at an elevation of approximately 520 metres on a southwest-facing slope, north of Raymond Creek and approximately 1.5 kilometres southeast of Mount Vernon.

Regionally, the area is underlain by extensively faulted rocks of the Upper Triassic Vancouver Group and the Upper Triassic to Lower Jurassic Bonanza Group. The basal Vancouver Group sequence is comprised of basalt flows, breccias and tuffs of the Karmutsen Formation overlain by Quatsino Formation limestone, which in turn is overlain by black argillites of the Parsons Bay Formation. The overlying Bonanza Group consists of a sequence of argillites, cherts, cherty tuffs, volcanic and/or sedimentary breccias, sandstones and basaltic to rhyolitic flows. The overall package of rocks has been broadly to tightly folded with fold axes generally trending northwest and intruded by granodioritic and feldspar porphyritic dikes and bodies of the Early to Middle Jurassic Island Plutonic Suite.

Locally, an approximately 150-metre wide and east-west–striking gossanous zone in a clay-pyrite-silica–altered tuff hosts an approximately 1-metre-wide quartz-carbonate vein.

In 2022, a rock sample (W515673) assayed 1.10 per cent copper and 3.7 grams per tonne silver (Assessment Report 40741).

Work History

In 1969, Quintana Mines conducted a regionally extensive program of geological mapping and geochemical (rock and soil) sampling on the area as the Tana property.

During 2020 through 2024, programs of prospecting, geochemical (rock, silt and soil) and biogeochemical sampling, spectral analysis/remote sensing and a 3.0 line-kilometre ground magnetic survey were conducted on the area as the Cowichan property by Darcy Vis.