The area of the Perkins Peak showing is underlain by volcaniclastic sandstone, siltstone, and minor limestone of the Upper Triassic Mosely Formation. A thrust fault contact with Cloud Drifter Formation occurs about 700 to 800 metres to the north and northwest of Perkins Peak. In this area, the Lower Cretaceous Cloud Drifter Formation consists of sandstone, siltstone, minor conglomerate. About 1.5 kilometres to the northeast is a grandioritic stock of the Late Cretaceous to Paleocene Bendor Suite.

Two isolated high copper rock samples were collected on the north side of Perkins Ridge in propylitic altered crystal tuff, along the north margin of the limonite colour anomaly. The highest copper sample (W591793) graded 0.92 per cent copper, 5.6 grams per tonne gold and 12.65 grams per tonne silver, came from west of Perkins Peak (Assessment Report 38794). Mineralization was reported as pyrite with minor chalcopyrite and malachite in fractures in diabase, particularly along the diabase contact.

July 2023 note: The grades for W591793 are given as listed above in Table 6, page 34, and Figures 10 and 11. However the grades are associated with Float Sample W591796 in the Certificate of Analysis KL19182630, located at UTM 358978E and 5739349N, which is 3700 metres to the southeast of W591793. The grades for W591793 in the Certificate of Analysis are 0.41 per cent copper, 0.68 gram per tonne gold and 7.47 grams per tonne silver (see Assessment Report 38794).

See Mountain Boss (092N 010) and Briton (092N 011) for related geological information and work history on the surrounding Perk-Rocky property.