The area is underlain by massive grey limestone and thin bedded argillite of the Jurassic/Triassic Kunga Group, which is disconformably overlain by andesites, tuffs and agglomerates of the Middle Jurassic Yakoun Group. These rocks are intruded and metamorphosed by a complex gabbro pluton ranging from coarse mesocratic gabbro and finely crystalline diabase to hornblende feldspar porphyries. These intrusives are thought to be part of the Eocene-Oligocene Kano Plutonic Suite. The gabbro engulfs masses of rhyolite and dacite of the Tertiary Masset Formation. Conformably underlying the Kunga sediments are Vancouver Group, Upper Triassic Karmutsen volcanics exposed to the southwest and in an anticlinal core to the east. The volcanics generally have horizontal flow attitudes. Block faults, trending 038, cut the pluton.

Anomalous gold values occur mainly in pyritic rhyolite and gabbro of the Masset Formation. Higher values occur within narrow quartz veins within the volcanics and Kunga argillites. Chloritized and brecciated rhyolite generally contains pyrite, pyrrhotite, arsenopyrite and occasionally molybdenite, sphalerite and magnetite.

Trench one contains 6 small quartz veins, 0.5 to 9 centimetres in width, trending 018 degrees with one trending 007 degrees, and all near vertical dips. The veins are hosted by pyritic intermediate lapilli tuff-breccia of the Yakoun Group and fall along a 150 degree trending fault.

A sample of a 4.2-centimetre quartz vein in trench one returned 66.4 grams per tonne gold and 35 grams per tonne silver. Drilling below trench one intersected 4.7 grams per tonne gold over 29 centimetres in hornfelsed Kunga argillite. Drilling 500 metres to the southwest intersected 4.7 grams per tonne gold over 76 centimetres in a quartz-clinopyroxene dike (Assessment Report 14503).