The Hank 30 occurrence is located at an elevation of approximately 1360 metres on a south-facing slope, approximately 2.3 kilometres south-southwest of the peak of the Promontory Hills.

Rocks of the Upper Triassic Nicola Group exposed on the Promontory Hills are intruded by the Lower Jurassic Guichon Creek Batholith to the north and the Coyle stock to the south and are overlain unconformably by the Lower Cretaceous Spences Bridge Group to the west and the Upper Cretaceous Kingsvale Group to the east. A large, upright to slightly overturned, subisoclinal anticline plunges gently northeast. Inferred faults have north-northwest and northeast trends.

The occurrence area is underlain by ash tuff, volcanic sandstone, volcanic breccia and intercalated augite plagioclase andesitic lavas, which comprise the core of the major fold. Rare limy units are partially converted to skarn. The strata strike northeast and dip steeply southeast. This belt is strongly epidotized and hosts weak copper and iron mineralization. Slender veinlets and minor disseminations of chalcopyrite, magnetite, specularite and pyrite occur within the flows and tuffs. Cobaltite is also evident. Skarn zones consisting of garnet, albite, quartz, calcite, chlorite and epidote host sulphide disseminations and veinlets.

To the west on the Hank 30 occurrence, on the Domino claims, an approximately 1050-metre long and 60- to 165-metre wide alteration zone comprising volcanics that have been bleached and replaced by chert(silica?), epidote and minor chlorite alteration hosts limy bands that have been altered to skarn with scattered occurrences of chalcopyrite and minor specularite as disseminations and fracture fillings, and malachite staining.

Another zone of minor fracture-filling copper mineralization is reported on the former Dodo 18 claim, approximately 1.8 kilometres southwest of the previous zone.

In the early 1960s, drilling is reported to have yielded intercepts including 0.12 per cent copper over two separate 3.0 metres sections in drillhole no. 1, located immediately east of the Hank 30 occurrence on the Hank 31 claim, and 0.12 per cent copper over 3.0 metres in hole no. 3, located on the Domino 9 claim near the eastern border of the No. 9 Indian Reserve and to the west of the Hank 30 occurrence (Property File – 801595). Also around this time, chip sampling of a trench on the Hank 31 claim yielded 0.27 per cent copper over 2.4 metres and 0.45 per cent copper with 6.8 grams per tonne silver over 1.2 metres, whereas select samples from the Domino claims yielded up to 1.50 per cent copper (Property File – 801605 and 801606).

Work History

In 1958, Centennial Mines Ltd. completed a program of trenching, three diamond drill holes, totalling 523.8 metres, and 9.9 line-kilometres of ground magnetic surveys on the as the Domino and Hank properties. Also at this time, Rio Canex Ltd. completed a program of soil sampling, geological mapping and a 9.0 line-kilometre ground magnetic survey on the area immediately southwest of the occurrence as the Dodo claims. An unknown amount of trenching and drilling is reported to have been completed on the area around this time as well.

During 1960 through 1963, Britmont Mines completed programs of geological mapping, soil sampling, trenching, five diamond drill holes, totalling 632.7 metres, and a 9.2 line-kilometre induced polarization survey on the area as the Hank and Domino claims.

In 1970, Rodstrom Yellowknife Mines Ltd. examined the area as the Hawk claims. In 1972, Red River Mines completed a soil sampling program on the area as the Hawk claims. The following year, a 1.0 line-kilometre ground magnetic survey was completed.

In 1981, Clibertre Exploration Ltd. completed a program of geological mapping on the area immediately north of the occurrence as the Charlotte claim. The following year, a program of prospecting and a ground magnetic survey was completed on the claim.

In 2012, Huldra Silver Inc. completed a 903 line-kilometre airborne geophysical survey on the area as the Thule property. This work isolated six magnetic anomalies (A through F) with the potential for magnetite skarn development, similar to the nearby Craigmont (MINFILE 092ISE035) deposit.

In 2013, Dot Resources Ltd. completed a ground electromagnetic survey on the area immediately south of the occurrence as the Promontory Hills property. The following year, a program of geological photo interpretation was completed. In 2015, a program of geological photo interpretation and 26.7 line-kilometres of ground magnetic surveys were completed on the property. In 2016, Christopher Delorme completed an 8 line-kilometre ground magnetic survey on the Promontory Hills property.

Also during 2015 through 2019, Nicola Mining Inc. completed programs of geological mapping, prospecting, airborne and ground geophysical survey and geochemical (rock and soil) sampling on the area as the Thule Copper property. This work identified a previously unrecognized alteration type/domain of pervasive silica-pyrite alteration within sedimentary rocks of the Nicola Group extending from near the peak of the Promontory Hills southwest over a distance of approximately 2 kilometres and up to 500 metres wide. The most intense alteration completely replaces medium- to coarse-grained, volcaniclastic-derived wackes and conglomerates with clasts completely pyritized.

Also in 2019, Calibre Exploration Ltd. completed a 6.0 line-kilometre induced polarization survey on the area immediately north of the occurrence as the Betty claims.