The A 4 (Camp) showing is located approximately 80 kilometres east-northeast of Vernon and 4 kilometres west of Sugar lake.

The area is underlain by metamorphic rocks of the Proterozoic to Paleozoic Kootenay (Shuswap) Assemblage. These comprise biotite schist, quartz- biotite schist, calc-sericite schist and biotite gneiss, striking northwest and dipping gently to moderately northeast.

An extensive, rusty, fine-grained biotite schist contains traces of pyrrhotite, pyrite and chalcopyrite. Locally, at the Camp showing on the A4 claim, this unit contains lenses of massive pyrrhotite with appreciable chalcopyrite and some hydrozincite stain. Trenching in 1977 exposed graphitic and pyrrhotite-bearing sediments but drilling failed to encounter any mineralization of significance. It is believed that massive sulphides found in float on this property came from elsewhere.

In 1973, a sample from a boulder at the Camp zone assayed 0.70 per cent copper and 19.2 grams per tonne silver (Assessment Report 4609). In 1977, diamond drilling yielded up to 0.38 per cent lead, 0.30 per cent zinc and 4.4 grams per tonne silver (Assessment Report 6677).

In 2006, sampling of float boulders yielded up to 0.477 per cent copper and 8.5 grams per tonne silver (Assessment Report 30422).

The A claims were staked in 1972 and the Newf claims were staked in 1973. In 1973, geological and geochemical surveys were completed. In 1977, the claims were staked as the Cuzin claims by Brican Resources and optioned to Rio Tinto. A program of geological mapping, geophysical and geochemical surveys, trenching and one diamond drill hole, totalling 85.0 metres, was completed. In 2006, a program of rock sampling and geological mapping was completed on the area as the Stonegate property.