The area is underlain by Lower Jurassic Hazelton Group volcanics of the Telkwa Formation comprised of andesitic flows, tuffs and breccias. Overlying the Telkwa Formation, is the Nilkitkwa Formation which is comprised of a mixture of pyroclastics, flows and sediment- ary rocks. The volcanics are intruded by stocks comprised of granodiorite, monzonite, and diorite.

Locally, the volcanic rocks of the Hazelton Group strike 310 degrees and dip 25 degrees southwest. The area of the Brenda showing is underlain mainly by maroon feldspar-crystal tuff and lapilli tuff of the Lower Jurassic Nilkitkwa Formation. To the east, a diorite intrusive is exposed.

A shear zone ranging from 6 to 12 metres in width trends about 065 degrees in the andesitic tuff. Mineralization occurs in part as disseminations and as replacement infillings along bedding planes adjacent to the shearing. On the right side of the creek open cuts expose massive pyrite with magnetite, sphalerite, and malachite staining. A sample across 1.8 metres of solid sulphide assayed trace silver, gold, copper, and 1.2 per cent zinc (Assessment Report 1665).

About 300 metres to the northeast there is a slightly minerali- zed diorite hosting chalcopyrite and pyrite.

On the Paradise property, the shear zone was described in 1918 as locally hosting quartz veining, ranging from 1.5 to 3.0 metres in width, mineralized with pyrite, magnetite, and minor arsenopyrite and pyrrhotite.

Recently, an old campsite and trenches were found. Abundant malachite staining occurs in the old trenches. In 1988, a grab sample from one of the trenches assayed 1.96 per cent copper and 261 grams per tonne silver (Assessment Report 17255). About 400 metres to the east is a small quartz vein with minor galena and chalcopyrite mineralization.