On the Hat occurrence, chalcopyrite, molybdenite and pyrite occur in large, stained zones in an unexplored area of the Coast Range located about 7 kilometres southwest of the south end of Chilko Lake.
The claims are underlain by a large biotite-hornblende granodiorite intrusion of the Late Cretaceous to Paleocene Bendor Suite. The rock types were described at the time of the work in 1970 as being biotite granite in fault contact with a hornblende diorite. The granite was intruded by numerous lamprophyre and aplite dikes, by pegmatites and by quartz veins and stringer zones. The granite contains fracture fillings of pyrite and molybdenum, and some disseminated chalcopyrite and pyrite. Small quartz stringers or fracture fillings occur throughout the rock and these often contain molybdenum. The hornblende diorite is in part gneissic and contains inclusions of meta volcanics and meta sediments. It contains some epidote, pyrrhotite, and some chalcopyrite. Sulphides occur as disseminations and fracture fillings in an altered intrusive rock.
The Hat contains 3 large gossan or rust areas along a northwest trend in biotite granite. Samples of float in a creek wash of ribboned quartz assayed trace gold and 1.25 per cent molybdenum; a sample of granite float with pyrite, molybdenite, and chalcopyrite assayed 0.27 per cent copper, and 0.43 per cent molybdenite (MoS2) (Malcolm, 1970).
In 1970, 114 Hat claims were located and were held by Mr. J. Assef and Mr. E. Tucker. Geologist D.C. Malcolm examined the property and reported on two samples that he collected.