The Dak occurrence is located on the south side of the Dak River, 7.0 kilometres northeast of Alice Arm. The area was explored for copper during the late 1960s and early 1970s.

The region is underlain by a sequence of volcanic and sedimentary rocks belonging to the Upper Triassic Stuhini Group and the Lower Jurassic Hazelton Group. In the vicinity of Wilauks Mountain (Mount McGrath), this sequence lies along the western flank of the north-northwest trending Mount McGuire anticline. These rocks have undergone regional green schist facies metamorphism.

The showing is hosted in intensely fractured Stuhini Group feldspar porphyritic flows that contain sericitized and albitized plagioclase and minor chloritized hornblende. Disseminated pyrite and minor chalcopyrite occur in these flows and local occurrences of malachite and azurite were noted in a 38 metre trench. Southwest about 300 metres, at 300 metres elevation, several trenches expose siliceous greywacke containing abundant disseminated pyrite, minor chalcopyrite and widespread malachite staining. A 3.0 metre chip sample assayed trace gold and 0.21 per cent copper (Geology, Exploration and Mining in British Columbia 1971, page 124).

Exploration work during 1967 included an examination of old showings, trenching, and 16 kilometres of linecutting for a geochemical survey on the Dak group. In 1971, work performed included the construction of 3.2 kilometres of trail across the tide flats at Alice Arm to give access to the property, and general prospecting in the vicinity of the showings.