The Kumiko showing is located on the south bank of Kumiko Creek at an elevation of 730 metres. The area appears to be underlain by rock of the Lower Jurassic Betty Creek Formation, Hazelton Group.
The showing consists of a sheared zone in intermediate volcanics, approximately 2 metres in width with a trend of about 170 degrees. Discontinuous lenses and veins of quartz occur throughout, and mineralization is spotty. Mineralization consists of pyrite, chalcopyrite, galena with minor malachite and azurite staining. An initial grab sample yielded assay results of 3.31 grams per tonne gold, 864 grams per tonne silver and 3.04 per cent lead (Assessment Report 24965). Follow up work consisted of chip sampling across the face of the shear zone. A series of four, one metre chip samples (true width 0.8 metres) were taken with one sample yielding values of 12.97 grams per tonne gold and 56.4 grams per tonne silver (Assessment Report 24965).
See Cumberland (MINFILE 104B 001) for further details of the Corey property and a common work history.