The Grizzly Creek veins are exposed along Grizzly Creek, a small eastward flowing tributary of the Apple River, at an elevation of approximately 920 metres.
The area is underlain by the Jurassic-Cretaceous Coast Plutonic Complex, which comprises granodiorite, granitoid gneiss, amphibolite and schist. The metamorphic rocks generally occur as small fault-bound pendants. Feldspar porphyry dikes are locally abundant.
The Grizzly Creek veins consist of quartz veins hosting massive pyrite and chalcopyrite with minor galena. The veins are south east trending and shallow- dipping to the south west. The most prominent vein has been traced for approximately 150 metres along strike and is up to 0.5 metre wide.
In 1990, rock sampling from veins yielded up to 0.34 gram per tonne silver, 8.7 grams per tonne gold, 0.16 per cent lead, 0.62 per cent zinc and 0.15 per cent arsenic (Assessment Report 21774).
The Apple occurrences were discovered as a follow up exploration program to the 1988 regional geochemical stream sediment sampling program in the Bute Inlet area. The Apple claims were subsequently staked by Placer Dome Inc. in 1989 and explored from 1989 to 1991. Exploration programs consisted of rock and soil sampling, prospecting and geological mapping. In 1997, Tiberon Mineral Ltd. prospected the Grizzly property as the Shannon claims. During 2010 through 2012, St. Elias Mines completed programs of rock, silt and soil sampling and 19 line-kilometres of combined ground electromagnetic and magnetic surveys.