The BW occurrence is located on a ridge separating Browns River and Wattaway Creek, approximately 2.5 kilometres north east of Wagner Lakes.
The area is underlain by intermediate to mafic basalts, volcanic tuffs and associated breccias, all of the Upper Triassic Karmutsen Formation, Vancouver Group. The basalt is typically fine grained and porphyritic and contains abundant thin quartz stringers.
The mineralization is reported to consist of pyrite, pyrrhotite and chalcopyrite within quartz veins and siliceous altered zones. The occurrences range from shallow to steeply dipping veins, or altered zones, with thicknesses of two to three metres. Copper staining was noted at one location, north of Browns River, just over a kilometre to the northwest of the veins (Assessment Report 17102, Figure 4).
In 1988, Noranda Mining and Exploration completed a program of prospecting, geological mapping and rock, silt and soil sampling on the area as the BW 1-3 claims.