The Seventynine Creek occurrence is located on Seventynine Creek, approximately 100 metres downstream from its confluence with its major westerly tributary and at an elevation of 680 metres.
The majority of the region is underlain by granodiorite to diorite intrusions of the Jurassic to Cretaceous Coast Plutonic Complex. Roof pendants of the Paleozoic Twin Island Group and Jurassic Harrison Lake Formation occur throughout the area. These are, locally, intruded by aplite and basaltic dikes.
Locally, several pyritic and malachite-stained quartz veins, 0.10 to 0.50 metre in width, outcrop in Seventynine Creek. The veins dip vertically and strike 163 degrees southeast.
A grab sample (SZ10) from a 0.10 to 0.20 metre wide quartz vein assayed 15.9 grams per tonne silver and 3.181 per cent copper, while another grab sample (SZ9) assayed 0.54 gram per tonne gold, 11.4 grams per tonne silver and 1.152 per cent copper (Assessment Report 18145).
In 1938 and 1939, native gold was mined from the 79 Hill and Blue Devil workings, near the headwaters of Seventynine Creek between Alouette and Stave lakes. Prior to operations closing in 1939, some high-grade shipments were made from the mine. During 1976, the Spanar claims were staked 1500 metres south of Mount Crickmer. An old adit was subsequently relocated and extended approximately 5 metres. An induced polarization survey was also carried out. Between 1981 and 1987, Skyrocket Exploration and Resources Inc. held a large claim block between Stave and Alouette lakes. Exploration revealed spotty gold soil geochemical values; however, later that year a significant gold value was obtained from a major, northeast- trending shear zone. Follow-up sampling and percussion drilling work was done in and around Kearsley Creek in 1984. During 1988 and 1989, soil and rock sampling surveys were carried out on the Oro and Star claims by 007 Precious Metal Inc. In 1995, the area was prospected and sampled as the Crickmer claims. In 2008, the area was sampled and prospected as the Seventy Nine project by Crucible Resources.
