The Grizzly occurrence is located between Meadow Creek and the Lardeau River in the Slocan Mining Division. The property consists of a single Reverted Crown grant, Lot 15015.

Regionally, the area lies within the Selkirk Mountains of southeastern British Columbia. The occurrence is within the Kootenay Arc, a curving belt of highly deformed metasedimentary and metavolcanic rocks which includes the Upper Proterozoic Horsethief Creek Group, the Upper Proterozoic to Lower Cambrian Hamill Group, the Lower Cambrian Badshot Formation, and the Paleozoic Lardeau and Milford groups. The volcano-sedimentary sequence is intruded by numerous Paleozoic to Mesozoic granitoid plutons.

The Lardeau River area of the Selkirk Mountains is mainly underlain by massive pillow lavas, volcanic breccia and green phyllitic rocks of the Index Formation and by grey-green mica schist of the Broadview Formation. Grey phyllitic rocks and marble of the Milford Group are exposed near the edges of the Mesozoic Mobbs Creek, Rapid Creek and Poplar Creek stocks. All rocks have undergone regional metamorphism to middle or upper greenschist facies. Rocks of the Milford Group have also been affected by thermal metamorphism (Geological Survey of Canada Bulletin 193).

The Grizzly occurrence consists of a shallow shaft, a short adit and two trenches. The workings follow a 1 to 2 metre wide quartz vein that contains a 2 centimetre wide band of tetrahedrite, chalcopyrite and pyrite along its western edge. The vein, which strikes north and dips 85 degrees west, is hosted in green calcareous phyllite of the Index Formation of the Paleozoic Lardeau Group. Its eastern contact follows a 60 centimetre wide green lamprophyre dike. Both the phyllite and the lamprophyre contain minor amounts of disseminated cubic pyrite. Carbonate alteration of the wallrock has stained the green phyllite to a red-brown colour. A grab sample of the sulphide-rich material assayed 815 grams per tonne silver and 1.05 per cent copper (Bulletin 49).