The UFS occurrence is located the Unuk Finger Mountain peak. The area is mapped as volcanics of the Middle Jurassic Salmon River Formation, Hazelton Group (Assessment Report 30131). A stock of Eocene quartz monzonite occurs to the immediate west and south. Contact with marine sedimentary and volcanic rock of the Upper Triassic Stuhini Group occurs about 2 kilometres east.

A very gossanous highly quartz-sericite-pyrite altered 3-metre-wide zone was reported in 2016. The silicified rock has 5 to 15 per cent disseminated pyrite and is silicified. The rock is reported to be tuff. A sample of this material graded 0.68 per cent copper, 6.2 grams per tonne silver and 0.125 gram per tonne gold (Assessment Report 36739). Gossanous zone was traced for over 25 metres. A fresh-looking 2-metre-wide intermediate cuts the altered zone.

See Sib (Lulu) (104B 376) and Cumberland (104B 011) for further details of work done on the Sib and Corey properties.

Work History

In 2016, C.J. Greig & Associates Ltd., on behalf of Eskay Mining Corp., conducted reconnaissance soil and stream sediment sampling in an area that has been mapped as Stuhini Group rocks, east of Ted Morris glacier on the southern part of the SIB property. Samplers collected 65 soil samples along a northwest-trending ridge located on the east side of the Ted Morris glacier. The soil line traversed an area mapped as Stuhini Group sedimentary and volcanic rocks. Samples were collected at 75 metres intervals along the line for a total line-length of about 4800 metres. Three stream sediment samples were also collected about 1 kilometre south of the soil line. A total of 126 rock samples were collected in a region encompassing about 35 square kilometres that surrounds the Ted Morris glacier. Areas sampled include Red Lightning (104B 605) and GFJ (104B 233) and areas farther south toward Ted Morris Glacier showing (104B 236).

In 2020, Eskay Mining Corp. completed a program of prospecting, rock sampling, ground and airborne geophysical surveys and 4335 metres of diamond drilling in 20 holes on the area as part of the Sib-Corey-North Mitchell property. The geophysical surveys consisted of a 911.7 line-kilometre airborne electromagnetic survey, a 55.85 line-kilometre induced polarization survey and a 43.19 line-kilometre magnetotelluric survey. Drilling was performed on the TV (MINFILE 104B 385) and Jeff (MINFILE 104B 525) occurrences.