Between 1930 and 1940, a 20-metre long adit was driven down plunge on an auriferous quartz vein located approximately 1.3 kilometres east of Cape Keppel on the southernmost part of Saltspring Island. The quartz vein plunges 32 degrees to the north through thin-bedded black shales and siltstones of the Mississippian to Pennsylvanian Fourth Lake Formation, Buttle Lake Group (formerly the Sediment-Sill Unit of the Sicker Group). The sediments are fine grained, fissile, steeply dipping and isoclinally folded. The vein lies close to an intrusive gabbro contact.

Three samples from the adit entrance, obtained in 1984, gave the following values: 0.1 to 3.4 grams per tonne gold, 0.1 to 0.4 per cent copper and 9.4 to 20.0 grams per tonne silver (Assessment Report 13375).

Quartz veining in the area shows a close association with the margins of the gabbro intrusive. These veins sometimes contain pyrite, chalcopyrite and pyrrhotite. Vein widths range from 30 to 100 centimetres.