The Fortuna 2 (BC-1) occurrence is located north of Birk Creek, approximately 6.5 kilometres northwest of its junction with the Barrier River.

Regionally, the area is underlain by the Graffunder Lakes, Skwaam Bay and Slate Creek units of the upper Paleozoic to lower Cambrian Eagle Bay Assemblage, which consist of micaceous quartzite, sericite-quartz schist, mudstone, siltstone, shale and calc-alkaline volcanic rocks. Local foliation strikes 135 degrees with a 5 degree northeast dip. The Cretaceous Baldy Batholith, consisting of quartz monzonitic intrusive rocks, lies to the north.

Locally, a 25-centimetre wide quartz vein hosting pyrite, chalcopyrite, galena and sphalerite mineralization is reported. The vein strikes 040 degrees and is steep dipping.

More recent drilling and trenching has identified a 2-metre wide meta-argillite unit hosting semi-massive to disseminated chalcopyrite, galena, sphalerite and pyrite over a width of 10 to 30 centimetres in a sequence of hanging wall biotite-pyrrhotite quartz latite to rhyodacite tuff, argillaceous dacitic to rhyodacitic tuff, lapilli breccia and a dacitic to rhyodacitic tuff and flow with the footwall hosting minor sphalerite and pyrrhotite mineralization. Sericite alteration is also reported. The mineralization is reported to be stratabound.

In 1984, sampling of the trenches yielded up to 4.32 per cent lead and 33.0 per cent zinc with 998.6 grams per tonne silver over 0.3 metre of massive sulphide vein from the no. 2 trench and 0.50 per cent copper, 2.22 per cent lead and 2.86 per cent zinc with 119.0 grams per tonne silver over 1.8 metres of the north wall of the no. 1 trench (Property File - Shevchenko, G. [1988-05-01]: Summary Report of Exploration on the Birk Creek North Property [BC-Loranger, Roberts and Semco Options] From 1984 to 1987 Inclusive).

In 1985, highlights of diamond drilling included: 0.303 per cent lead, 0.581 per cent zinc and 13.8 grams per tonne silver with 0.12 gram per tonne gold over 3.35 metres in hole LOR 85-1; 0.408 per cent lead, 0.282 per cent zinc and 9.8 grams per tonne silver with 0.13 gram per tonne gold over 2.0 metres in hole LOR 85-2; 0.570 per cent lead, 0.533 per cent zinc and 25.1 grams per tonne silver with 0.23 grams per tonne gold over 7.7 metres in hole LOR-85-3 and 0.857 per cent lead, 1.065 per cent zinc and 24.1 grams per tonne silver and 0.15 gram per tonne gold in hole LOR 85-4 (Property File - Shevchenko, G. [1988-05-01]: Summary Report of Exploration on the Birk Creek North Property [BC-Loranger, Roberts and Semco Options] From 1984 to 1987 Inclusive). The holes were located approximately 350 metres to the north west of the trenched zone.

In 1986, a drill hole (NDD 86-12), located approximately 800 metres to the north west, intersected a fuchsite-altered, pyrrhotite-bearing feldspar porphyry intrusive yielding from 12.34 to 149.8 grams per tonne silver over a true width of approximately 5 metres (Property File - Heberlein, D. [1989-06-20]: Property examination re: BC-Loranger claim group).

In 1987, a rock sample (15873) assayed 0.190 per cent zinc, 0.520 per cent lead and 40.0 grams per tonne silver (Property File - Shevchenko, G. [1988-05-01]: Summary Report of Exploration on the Birk Creek North Property [BC-Loranger, Roberts and Semco Options] From 1984 to 1987 Inclusive).

In 1989, sampling of the trenches yielded up to 0.50 per cent copper, 2.22 per cent lead and 2.86 per cent zinc with 0.6 gram per tonne silver and gold, respectively, over 0.25 metre in trench 84-1 and 4.32 per cent lead and 33.0 per cent zinc with 29.2 grams per tonne silver over 0.30 metre in trench 84-2 (Property File - Heberlein, D. [1989-06-20]: Property examination re: BC-Loranger claim group).

In 1973, Craigmont Mines Ltd. completed a program of geochemical sampling and ground geophysical surveys on the area as the BC claims. During 1984 through 1987, Noranda Mining and Exploration Inc. completed programs of ground and airborne geophysical surveys, 14 diamond drill holes, totalling 1036.9 metres, and 605 metres of trenching. In 1989, Minnova Inc. examined and sampled the area as the BC-Loranger property.