A granodiorite - quartz monzonite stock of the Coast Plutonic Complex intrudes Jurassic Hazelton Group rocks consisting primarily of augite andesite with lesser basalt and dacite. The volcanics have been variably metamorphosed. A weak porphyry copper-molybdenum system occurs within and adjacent to the stock. The mineralization consisting of chalcopyrite, molybdenite with associated azurite, malachite, and ferrimolybdite occurs mainly as disseminations but it has also been reported in association with fractures and quartz veinlets.