The L67 occurrence is located southwest of Raffuse Creek at an elevation of approximately 760 metres.

The area occurs on the eastern edge of the Britannia- Indian River pendant, which hosts the volcanogenic deposits of the Britannia camp (MINFILE 092GNW003). The Britannia-Indian River pendant is mainly a calc-alkaline, sub-aqueous volcanic and sedimentary sequence of felsic to intermediate pyroclastics, flows, cherts, argillites and greywackes. The entire pendant has been classified as part of the Upper Jurassic to Lower Cretaceous Gambier Group. Cenozoic to Mesozoic Coast Plutonic Complex intrusives surround portions of the stratified rocks, creating screens or pendants. These bodies are oriented north westerly throughout the Coast complex. Pliocene to recent Garibaldi Group basaltic dikes and sills intrude both the pendant and plutonic rocks.

Locally, narrow bands of fracture controlled pyrite, chalcopyrite, sphalerite and galena are hosted by a rhyodacite. In 1982, rock samples 25479 and 25482 yielded up to 9.8 grams per tonne silver, 1.90 per cent copper and 0.22 per cent lead (Assessment Report 11642).

Another area of mineralization (L70), located approximately 300 metres to the northeast on the far side of Raffuse Creek, consists of banded pyrite and chalcopyrite in a rhyodacite adjacent to an andesite dike. In 1982, two rock samples (25467 to 25469) assayed up to 0.54 gram per tonne gold, 8.3 grams per tonne silver and 0.241 per cent copper (Assessment Report 11642).

The area has been historically explored in conjunction with the McVicar (MINFILE 092GNW006) occurrence to the south. During 1978 through 1983, Texasgulf and later Kidd Creek Mines completed programs of rock and soil sampling, geological mapping and ground and airborne geophysical surveys. In 1987, Kidd Creek Mines completed a program of rock sampling and geological mapping.