The OX occurrence is located on the south side of Mosquito Creek, approximately 10 kilometres east- north east of Port Renfrew.

The area is underlain by a slate-phyllite unit and calc-silicate unit, both of the Jurassic to Cretaceous Leech River Complex. In this vicinity the metasediments are intruded by aplite sills and dykes.

Mineralization in the calc-silicate unit consists of disseminated pyrite, pyrrhotite and magnetite. Mineralization in the aplite intrusives consists of disseminated grains and clusters of pyrrhotite, pyrite and arsenopyrite. Mineralization in the slate-phyllite consists of disseminated pyrite cubes in foliation surfaces and abundantly disseminated pyrite and pyrrhotite in siliceous lensoid laminae, quartz veins and cross-veins.

The quartz veins contain varied amounts of carbonate and tend to occur in areas of abundant siliceous interlayering. A few specimens containing free gold were collected. Gold in four separate quartz showings occur within 190 metres. One vein is traceable for 46 metres. The quartz showings strike approximately south-southwest.

In 1980, BHP-Utah Mines completed a program of geological mapping, rock and soil geochemical sampling and a ground magnetic survey on the OX claim. Two samples, T81-093 and 095, containing visible gold yielded values of 39.0 and 41.0 grams per tonne gold, respectively. Five other samples taken in the same area of veining assayed from 1.6 to 7.6 grams per tonne gold (Assessment Report 9807).

In 1981 through 1986, M. Tavela completed programs of geological mapping, rock and soil sampling and ground magnetic geophysical surveys were completed. In 1985, two samples (R-179 and R-168) assayed 14.6 grams per tonne gold and greater than 10.0 grams per gold, respectively (Assessment Report 14699).

In 1988, Sumatra Res. Inc. completed a program of soil sampling, geological mapping and ground geophysical surveys on the area as the Carol claims. In 1990 and 1991, Beau Pre Explorations completed programs of rock and silt geochemical sampling and geological mapping on the area as the Potosi 1-4 claims.