The property is underlain by Middle Jurassic Yakoun Group volcanics, composed mainly of andesites and agglomerates, unconformably overlain by Cretaceous (Albian) Queen Charlotte Group, Haida Formation shales and sandstones. These rocks lie southwest of the northwest trending, northeast dipping Sandspit fault. East of the fault are poorly consolidated sediments of the Tertiary Skonun Formation.
The Yakoun volcanics are cut by mineralized shear zones displaying brecciation, clay alteration, silicification, and quartz veining. Mineralization consists of of pyrite, sphalerite, galena, and minor chalcopyrite in volcanics and in quartz veins as disseminations and veinlets. A chip sample taken discontinuously across 0.8 metre of quartz veining, cutting silicified volcanics with patches and disseminations of pyrite, along the east bank of Canyon Creek, assayed 1.097 per cent zinc and 0.179 per cent lead (Assessment Report 21814, page 15). Diamond drill hole 81-2 intersected 0.40 per cent zinc, 0.21 per cent lead, 0.03 per cent copper and 0.05 gram per tonne gold over 7 metres at 112 metres depth. At 155 metres the drill hole intersected 90 centimetres of rock grading 0.93 gram per tonne gold and 3.0 grams per tonne silver (Assessment Report 9863). Two kilometres to the south a drill hole intersected rock containing 1.37 grams per tonne gold over 3 metres (Assessment Report 9863).
Umex Ltd. first conducted extensive exploration over this occurrence. The company performed soil, geochemical and ground geophysical surveys and drilled ten diamond drill holes totalling 1268 metres in 1981. Procan Exploration Ltd. completed 45 percussion holes totalling 205.12 metres in 1984. Doromin Resources Ltd. carried out soil and silt sampling and VLF-EM and magnetometer surveys in 1990, followed by prospecting and sampling in 1991. Misty Mountain Gold Ltd. conducted soil sampling, prospecting and flew airborne radiometrics, resistivity, and magnetometer surveys over the showing in 1995. The company also completed an induced polarization survey and conducted additional soil sampling in 1997.
