The Lead Coil B showing is located about 15 kilometres northeast of Stewart and 4.7 kilometres east of the confluence of Bitter Creek and the Bear River, on the south flank of Ore Mountain. The showing is near the northeast corner of the Lead Coil claim (Lot 4811).

The area is underlain by north to northeast striking, folded argillites of the Middle Jurassic Salmon River Formation (Hazelton Group) (Bulletin 63).

Mineralization comprises a breccia zone, 3 metres wide, hosted in black argillite. The zone trends north and dips 46 degrees west. It contains quartz stockworks carrying chalcopyrite, malachite and minor scheelite(?). A grab sample collected in 1989 assayed 0.49 per cent copper, 14.4 grams per tonne silver and 0.01 per cent tungsten; lead, zinc and gold values were negligible (Assessment Report 19242).

The showing may have been known previously, but it was first reported in 1989 when Grey Silver Mines performed geological mapping, sampling and soil surveys in the area. The following year Varitech Resources Ltd. conducted a program of geological mapping, prospecting, sampling and soil, VLF-EM and magnetometer surveys in the area. During 2005 through 2010, Auramex completed programs of prospecting, geological mapping, geochemical sampling and airborne geophysical surveys on the area as the Bear River-Surprise Creek property.