The PINNACLE (CATHEDRAL) occurrence is located in a north-facing alpine basin, approximately 13 kilometres west of Uslika Lake and 58 kilometres northwest of the community of Germansen Landing. As part of the Thane property (2025), lying between the Osilinka and Mesilinka river valleys, the area is approximately 180 kilometres northwest of Mackenzie and 185 kilometres north-northeast of Smithers.

The area is underlain by the Triassic-Jurassic Hogem Plutonic Suite which consists of numerous intrusive bodies of distinct age. This complex varies in composition between gabbro, diorite, monzonite, syenite and alkali feldspar syenite. The weak to moderately propylitic-altered Upper Triassic Thane Creek diorite is the dominant rock type throughout the area. North trending sub-vertical (quartz) monzonite intrusives form part of the Middle Jurassic Duckling Creek suite, while southeast trending potassium feldspar megacrystic monzonite porphyry and latite porphyry dikes are part of the Middle Cretaceous Mesilinka suite.

The Pinnacle showing consists of a 60-metre-wide zone of parallel faults within the quartz monzonite. The seven faults identified strike between 150 to 170 degrees and dip 50 to 60 degrees to the west. The faults host quartz veining with chlorite and minor carbonate and are variously mineralized with pyrite, arsenopyrite, chalcopyrite ±molybdenite within the contact area between diorite and (quartz) monzonite. Outside of diorite-(quartz) monzonite contacts, localized shear zones and areas of increased quartz-carbonate vein breccias, disseminated pyrite±chalcopyrite is noted within the diorite, (quartz) monzonite, and latite porphyry typically in trace amounts. The only rock noted to be unmineralized is the potassium feldspar megacrystic monzonite porphyry.

Rock samples collected from the two westernmost and two easternmost faults have yielded significant gold results, though anomalous arsenic and gold have been encountered in the other structures as well. Significant gold values in samples invariably have anomalous arsenic values, although the converse does not necessarily hold. Rock sample #1926 was collected from the western most fault hosting a quartz-sulphide vein, 2.5-3 centimetres thick, containing a semi massive pyrite chain of grains and aggregates with lesser disseminated arsenopyrite. The sample assayed 3.60 grams per tonne gold, 0.1 per cent copper and 2.8 grams per tonne silver (Assessment Report 34793).

A rock sample (1255) from the Pinnacle occurrence area yielded 13.0 grams per tonne gold (Vanderwart Consulting Inc. (2021-07-12): Technical Report on the Thane Copper-Gold Project, Omineca Mining Division, British Columbia, Canada). Rock sample 3271, collected from a mineralized diorite outcrop in 2021, returned values of 1.34 per cent copper, 12.2 grams per tonne silver and 0.34 gram per tonne gold (Assessment Report 40622).

2021 drilling highlights at the Pinnacle occurrence include mineralization within two intersected shear zones in hole TH21-9. The first was a 1.2 metre intercept, from 42.78 to 44 metres downhole, assaying 0.12 per cent copper, 1.19 grams per tonne silver, 0.97 gram per tonne gold and 0.0004 per cent molybdenum. The second was a 2.77 metre intercept, from 115.49 to 118.26 metres downhole, grading 0.08 per cent copper, 1.1 grams per tonne silver, 0.18 gram per tonne gold and 0.0019 per cent molybdenum (Assessment Report 40622).

Work History

In 2009-10, C.O. Naas examined the provincial Regional Geochemical Survey data and British Columbia MINFILE which led to the staking of the Thane Creek property tenures. A comprehensive compilation of historical exploration work was undertaken and identified four areas that indicated excellent potential for copper-gold mineralization. In 2010, a property visit was carried out and explored three of the target areas identified by the compilation program. Exploration consisted of geochemical sampling with collection of 10 silt samples and 69 rock samples. In 2012, Thane Minerals Inc. carried out exploration at multiple areas on the Cathedral property including the Tenakihi (094C 071), Link (094C 123), Osilinka (094C 050), Cathedral (094C 109, 181), Gail (094C 072, 133), Cirque (093N 093), and Lake (094C 188) zones. Exploration consisted of silt sampling, soil and talus fine sampling (contour and gridded), rock sampling, and geological mapping. A total of 36 silt samples, 785 soil and talus fine samples, and 749 rock samples were collected. Approximately 1525 hectares were geologically mapped at 1:10,000 scale. Analyses of soil and talus fine samples and selected rock and silt samples have been carried out by x-ray fluorescence (XRF).

In 2020, Interra Copper Corp. completed a program of geological mapping, geochemical (rock, soil and stream sediment) sampling and a 14.0 line-kilometre induced polarization survey on the area as the Thane property. Interra continued exploration on their Thane property in 2021, with geological mapping, rock and soil sampling at the Pinnacle and Gail areas, soil sampling at the Mat showing and an airborne helicopter magnetic survey at Cathedral. In addition, 2783 metres of NQ diamond drilling was accomplished in 12 holes, to test the depth potential of the prospective Cathedral, Pinnacle, and Gully target areas (Assessment Report 40622). Two holes (TH21-9, 10) were drilled at the Pinnacle occurrence.

Interra Copper Corp. changed their name to Copper Quest Exploration Inc. in early 2025 (Press Release, Copper Quest Exploration Inc., March 3, 2025).