The Blue Grouse deposit is located just west of the Cambria Icefield at the headwaters of Glacier Creek, 8.5 kilometres east-northeast of Stewart. Several shipments of high grade lead-zinc-silver ore were produced from a vein discovered in 1937.

The deposit occurs at the southeastern margin of a 3.0 kilometre long, 2.0 kilometre wide Tertiary augite diorite stock (Coast Plutonic Complex) which intrudes argillite, greywacke and limestone of the Middle Jurassic Salmon River Formation (Hazelton Group).

The deposit consists of a 0.10 to 0.30 metre wide vein, striking 020 to 056 degrees and dipping 50 to 75 degrees northwest, within a shear zone. The vein has been traced underground along strike for 91 metres and is displaced 5 metres by a dextral strike-slip fault which strikes 156 degrees and dips 70 degrees southwest.

Mineralization consists of massive to disseminated sphalerite, boulangerite, pyrite, galena, arsenopyrite, with minor pyrrhotite and chalcopyrite in a gangue of quartz, calcite, siderite and ankerite. A 15.5 kilogram sample of sorted ore assayed 0.69 gram per tonne gold, 2982 grams per tonne silver, 0.4 per cent copper, 6.8 per cent lead, 19.5 per cent zinc and 0.1 per cent antimony (Minister of Mines Annual Report 1938, page B23). A series of chip samples indicated that the vein averages 1988 grams per tonne silver over an approximate width of 0.3 metre and a strike length of 30 metres (Property File - Chisholm, 1973, page 6).

In 1968 and 1973, a total of 11 tonnes of sorted ore with an average grade of 4125 grams per tonne silver, 17.6 per cent lead and 19.9 per cent zinc were produced.

The vein outcrops at 1496 metres elevation, about 3 metres above the base of the front of a slope of 37 degrees of a ridge which at about 122 metres to the northeast rises to about 1554 metres elevation. By 1938, it had been explored and traced northeastward for a horizontal distance of 21 metres, by an adit 8 metres in length near the base of the slope and two long, benched opencuts into the face of the slope extending to 1512 metres elevation. Beyond this, spaced along a distance of 15 metres, three small trenches in shallow overburden and an opencut have not located the vein, but may not be in alignment with its strike in the rising terrain.