The oldest rocks on the property consist of massive volcanic flows, breccias and pillowed lavas of the Upper Triassic Vancouver Group, Karmutsen Formation. These volcanics have undergone regional greenschist facies metamorphism and are overlain by massive limestone of the Upper Triassic Sadler Formation (Kunga Group). Small intermediate composition dikes intrude the Sadler limestone and to a lesser degree the Karmutsen greenstones. The dikes are spatially related to quartz veins and silicified breccias.

On the property, quartz veins and silicified breccias occur in limestone over an area of about 800 metres by 800 metres. Within the central zone, massive quartz veins up to 2.0 metres in width and quartz stringers occur within the acid to intermediate dikes. Silicified breccia is common along several of the dike margins. The breccias contain minor pyrite and arsenopyrite.

Skarn mineralization is poorly exposed on the property but occurs near the base of the Sadler limestone. Common mineralization is sulphide-epidote and fine-grained silicates with some magnetite. The sulphides comprise 2 to 10 per cent of the rock volume and consist of pyrite, pyrrhotite and arsenopyrite. Tremolite occurs with severe bleaching of the limestone. Tremolite is common locally at the limestone-greenstone contact.

Numerous rock chip samples were collected in 1980 by Placer Development Limited. Individual dike-quartz vein occurrences have values ranging from trace to 0.155 gram per tonne gold (Assessment Report 8010).