The Mob 8 showing is exposed in the vicinity of a gas pipeline, 520 metres north of the north end of Prosser Lake and 7.8 kilometres southwest of Missezula Lake.

A west-striking shear zone, dipping 25 degrees south, cuts granite and quartz monzonite of the Late Triassic to Early Jurassic Allison Lake pluton. The zone is 2 metres wide and contains small quartz-carbonate lenses accompanied by pyrite, galena, argentite, azurite, malachite, chalcopyrite and tetrahedrite. A selected grab sample assayed trace gold, 25,852 grams per tonne silver and 8.06 per cent copper (Assessment Report 5082, page 5). A chip sample across the shear zone analysed 145.9 grams per tonne silver, 0.0421 per cent copper, 0.630 per cent lead and 0.413 per cent zinc (Assessment Report 13603, page 6). Two shallow holes drilled on the shear zone intersected fine-grained granodiorite and minor andesite, occasionally pyritized and cut by quartz and epidote stringers.

A quartz vein, 5 to 15 centimetres wide, is developed in the hangingwall of the shear zone. It strikes north and dips steeply west. The vein is mineralized with galena, chalcopyrite, chalcocite and malachite. A sample analysed 858.2 grams per tonne silver, 0.862 per cent copper, 2.589 per cent lead and 1.473 per cent zinc (Assessment Report 13603, page 6).

Chalcopyrite and pyrite occur in dark, fine-grained diorite 90 metres west and 120 metres east of the shear zone. One hundred and twenty metres to the north, chalcopyrite and bornite occur in epidote-filled fractures.

E. Sleeman and Bronson Mines Ltd. conducted soil, magnetometer and geological surveys over the showing in 1973 and 1974. The company drilled two holes totalling 22 metres in 1975. Additional prospecting and soil sampling were conducted by J. Balint and West-mar Resources Ltd. in 1984 and 1985.