The Pac occurrence is located east of the Nitinat River, near its head waters.

The area, located in the Cowichan uplift, is underlain by volcanics and minor sediments of the Upper Devonian McLaughlin Ridge Formation (formerly the Myra Formation) and the Devonian Nitinat Formation (Sicker Group). Diabase and gabbro dikes and sills, considered to be coeval with the Triassic Karmutsen Formation, outcrop to the south.

Locally, a strongly altered zone, approximately 15 metres wide, hosts mineralized quartz-carbonate veins and veinlets, up to 2 centimetres wide, with mariposite alteration within sheared pyritic quartz-sericite schist and chloritized mafic volcanic flows and tuffs. Sulphide mineralization consists of disseminated to massive pyrite, chalcopyrite and minor pyrrhotite.

The area has been explored in conjunction with the Snapper (MINFILE 092F 543) occurrence, located to the south, since 1985. In 1992, the Pac claim was prospected by E.W. Hayes. Ten samples were taken, giving values of up to 2,550 parts per billion gold, 40 parts per million silver, 41, 957 parts per million zinc and 6,100 parts per million copper (Assessment Report 22330). Rock chip samples have, reportedly, returned assays of 3.9 grams per tonne gold over 1.5 metres and 1.3 grams per tonne gold over 1 metre (Assessment Report 25452).

In 1993, Calcap Investments completed a VLF-EM program on the Pacific claims, to the east. From 1995 to 1998, G. Westgate and L. Sookochoff completed programs of prospecting, geological mapping and soil geochemical surveys on the Pacific claims. In 1996, a grab sample of quartz with massive pyrite assayed 1,703 parts per million copper (Assessment Report 24406). In 1997, a grab sample of un-mineralized quartz vein assayed 1,110 parts per billion gold (Assessment Report 25066).