The Grey Goose occurrence is located on the west bank of the Illiance River, about 15.5 kilometres northeast of Alice Arm. The area was explored periodically since 1916 for lead and zinc mineralization.
The region is underlain by Lower Jurassic Hazelton Group volcanics and sediments situated on the east limb of the north-northwest trending Mount McGuire anticline. These rocks have been regionally metamorphosed to greenschist facies.
The showing consists of a northwest striking shear zone, in light grey rhyolitic schist, exposed in a 6.0 metre long trench. The zone is mineralized with small lenses of massive galena and sphalerite over an approximate width of 0.6 metre. A 0.6 metre chip sample across the zone assayed 1337 grams per tonne silver, 30.0 per cent zinc, 19.9 per cent lead and 0.36 per cent copper (Assessment Report 10115, page 12).
A 0.46 metre wide quartz-carbonate vein is reported to occur in this vicinity. The vein, mineralized with galena and pyrite, strikes northwest for 10 metres and is hosted in a northwest striking, west dipping shear zone developed in andesitic schist.
In 1989, three drillholes (89-3, 4 and 5) were drilled in the Grey Goose zone. Each hole intersected areas containing appreciable galena and sphalerite as disseminations and veinlets. In drillhole 89-5, a 3.9 metre interval assayed 0.34 gram per tonne gold, 52.4 grams per tonne silver, 1.08 per cent lead and 2.83 per cent zinc (Assessment Report 19459).
These showings are likely part of the same shear structure that contains the Illy showings (103P 141) to the north and the Bellevue showings (103P 139) to the south.
In 1989, Great Northwest Resources Corp. conducted a diamond drilling program on three areas containing silver-lead-zinc mineralization (Horsecut/United Metals/Illy, 103P 141; Grey Goose). A total of 684 metres were drilled in seven holes, two of which were short X-ray holes.
In 2011, Bravo Gold Corp. drilled two holes on the Grey Goose showing. Drillhole KN11-003 was collared to twin an historical drillhole in the Grey Goose zone. The few rock samples collected on surface here contained anomalous silver, lead and zinc results which were substantially lower than those of samples collected in the Silver Bar North (103P 044) and United Metals zone (103P 141). The drillhole intersected a broad zone of grey sericite/pyrite/carbonate/silica alteration from 21.65 to 119.20 metres which is surrounded by an envelope of weaker, pinkish green sericite/hematite/carbonate alteration. Weaker maroon hematite/carbonate alteration occurs beneath 219.10 metres on the east side of the Illiance River fault. Massive to semi-massive sphalerite with lesser amounts of galena occur as patches to disseminations within the altered volcanics and veins within the grey sericite/pyrite/silica alteration from 46.45 to 119.20 metres. Narrower intercepts of sphalerite and galena were also intercepted from 119.20 to 210.75 metres. Silver results usually correspond with the higher lead results for galena-bearing quartz-carbonate veins.
Drill hole KN11-004 was collared at the same site as drillhole KN11-003 but oriented further to the south to test the offset of sulphide mineralization intercepted in drillhole KN11-003. In comparison to drillhole KN11-003, a more intense interval of grey sericite-pyrite-carbonate-silica was intersected from 23.25 to 217.55 metres and abruptly changes to maroon hematite altered volcanics beneath 224.60 metres. As in previous holes, semi-massive to massive, vein-hosted sphalerite and galena mineralization occurs within the grey-sericite-pyrite-silica alteration envelope from 61.70 to 199.55 metres (Assessment Report 33561).
In 2011, Bravo Gold Corp. carried out a wide ranging exploration program over their large Kinskuch property which included reconnaissance mapping and sampling, soil sampling, channel sampling, and diamond drilling four holes totalling 855.87 metres. One drillhole was completed on the Silver Bar North showing (103P 044), one hole on the United Metals showing (103P 141), and two holes on the Grey Goose showing.
