The Pogo (Cow 15) showing is located on the ridge separating Chipman Creek to the north and the Chemainus River the south. The showing has been explored as part of the Cow property and related occurrences.

Regionally, the area is underlain by chert, siliceous argillite and siliciclastic rocks of the Mississippian to Pennsylvanian Fourth Lake Formation (Buttle Lake Group) and volcaniclastic rocks of the Middle to Upper Devonian Mclaughlin Ridge Formation (Sicker Group). These rocks are intruded by granodiorite and quartz diorite of the Early to Middle Jurassic Island Plutonic Suite and gabbroic to dioritic rocks of the Triassic Mount Hall Gabbro. Undivided sedimentary rocks of the Upper Cretaceous Nanaimo Group locally overlay the previous units.

Sulphide mineralization occurs in rusty shear zones as disseminations, and/or stringers along bedding, cleavage or crosscutting fractures. Mineralization is hosted in laminated sediments and volcaniclastics spatially associated with the gabbroic dikes. Pyrite and minor chalcopyrite are finely disseminated throughout the rocks.

The Pogo showing consists of pyrrhotite, pyrite (up to 5 per cent), chalcopyrite (less than 1 per cent). Spahlerite and galena have not been confirmed for the Pogo showing and if present would be rare. Mineralization occurs disseminated, along fracture planes and in quartz-carbonate stringers (up to 2 centimetres wide) in a fractured, medium-grained gabbroic dike that intrudes black cherty argillites of the Fourth Lake Formation (previously known as the ‘Sediment-Sill Unit’ of the Paleozoic Sicker Group). Mineralization occurs at a synclinal fold axis where the sill is ‘pinched’ as it crosses from the west limb to the east limb. Mineralization has been traced along a logging road for approximately 300 metres.

Work History

In 1964, E.M. Wilson of Canadian Pacific Oil and Gas Limited staked the original Pogo 1-4 claims and completed a program geological mapping, prospecting and geochemical sampling. Chip samples yielded values of up to 0.42 per cent zinc with 0.33 per cent lead over 0.25 metre (Sample 39890) and 0.10 per cent zinc with 0.48 per cent lead over 0.13 metre (Sample 39885; Assessment Report 00566).

During 1985 through 1987, JBL Resources completed programs of geological mapping, prospecting, geochemical sampling, ground geophysical surveys and two diamond drill holes, totalling 99.5 metres, on the area as the Cow 12-16 claims, specifically the Cow 15 claim. In 1985, the best assays of 29 rock samples yielded 0.42 per cent zinc over 3 metres, 0.48 per cent lead, 0.09 per cent copper and trace silver from different 1.5-metre samples (Assessment Report 14462). In 1987, a rock sample (3982) assayed 0.251 per cent copper (Assessment Report 16097).

In 2024, Fields of Gold Corp. conducted a program of geochemical (rock, silt and soil) sampling on the area as the C3 property. A rock sample (181402) of gabbro with quartz blebs and veins hosting chalcopyrite assayed 0.435 per cent copper and 0.14 gram per tonne gold (Assessment Report 42177).