The Perrier mine is located 3 kilometres south of Nelson. The area has been intermittently explored since the early 1900's.

The area is underlain by altered augite (plus or minus plagioclase) basalt flows, flow breccia and subvolcanic intrusions of the Lower Jurassic Elise Formation (Unit Je1), Rossland Group (Open File 1989-11). A tongue of granite to granodiorite of the Middle to Late Jurassic Nelson batholith occurs to the east.

There are three types of mineralization in the area: (1) gold-bearing quartz veins; (2) stratiform lead-zinc deposits; and (3) widespread disseminated sulphide mineralization. The veins appear to be fault controlled.

A flat lying quartz vein which crosscuts the regional foliation is hosted in chloritic schists. The vein strikes about 005 to 020 degrees and dips 35 to 60 degrees east. The vein, 0.25 to 0.55 metres wide, has been traced along strike for over 500 metres. The vein has quartz gangue with sphalerite, galena, pyrite, chalcopyrite and occasionally, free gold. Concentrations of sulphides are reported in zones where the vein has a flatter dip. A crosscutting vein which may be a branch of the main vein outcrops about 61 metres southeast of the shaft, strikes 330 degrees and has a vertical dip. This second vein hosts minute amounts of ruby silver and native silver with some carbonate (calcite).

The Julius Ceasar vein, about 450 metres due west of the Perrier mine, is hosted in quartz-feldspar porphyry. Chip samples assayed only low gold and silver values.

At the Lucky Boy adit, 150 metres south of the Perrier shaft, a mineralized zone, 0.45 metre wide, hosts galena, sphalerite, chalcopyrite and minor magnetite in schistose biotite tuffite. A grab sample taken in 1982 from the adit across the 0.45 metre assayed 0.190 per cent copper, 3.66 per cent lead, 5.75 per cent zinc, 114.5 grams per tonne silver, 2.71 grams per tonne gold (Assessment Report 10605). This deposit has been determined to be a Kuroko-type volcanogenic massive sulphide deposit.

Limited information and production records between 1913 and 1937 indicate the mine produced in excess of 2000 tonnes recovering over 34,681 grams of gold, 94,803 grams of silver, 14,384 kilograms of lead and 21,144 kilograms of zinc. Geochemical and geophysical survey results in 1988 were interesting (Assessment Report 17686).