The area is underlain by the Devonian part of the Eagle Bay rocks consisting of quartz-chlorite-sericite schist, quartzite and hornfels. They strike northeast and dip moderately to the northwest. A northwest trending 20 metre wide quartz feldspar porphyry cuts the metavolcanics.

Chalcopyrite, pyrite and pyrrhotite occur as disseminations and massive bands and blebs concordant with foliation and bedding. Chal- copyrite also occurs in quartz veins and fractures. The mineralized zone which is about 350 metres long and 2 metres thick, trends roughly 040 degrees and dips 50 degrees northwest. A drill hole intersected 4.6 metres of 0.3 per cent copper and 1.35 grams per tonne silver (Assessment Report 7758).