In the area of the Full showing, a major northwest trending fault zone separates rhyolite and dacite of the Early Eocene Sloko Group to the northeast and biotite-hornblende quartz monzonite, which is likely genetically related to the Paleocene to Eocene Sloko-Hyder Plutonic Suite, to the southwest. These rocks intrude foliated diorite of Middle to Upper Triassic age. Quartz feldspar porphyry dikes cut the rocks and pyrite is commonly disseminated in all the rocks. Basalt dikes cut the diorite and contain quartz veins mineralized with minor pyrite, chalcopyrite, malachite, and azurite.

A sample of a mineralized quartz vein in a basalt dyke assayed 0.28 per cent copper and 5.6 grams per tonne silver (Sample R73032, Assessment Report 14367). About 2 kilometres to the northeast, several float samples of foliated diorite contained quartz veins with galena, pyrite, sphalerite, and chalcopyrite. One sample assayed 2.33 per cent lead, 383 grams per tonne silver, 1.2 per cent zinc, and 0.85 per cent copper. (Assessment Report 14367).

In 1985, Noranda Exploration Company Limited collected a total of 20 rock and 3 talus fine samples during the work program on the FULL claims. A northwest trending fault located centrally in the claims was sampled in detail to the south where prominent red-orange gossan up to 200 metres wide in Eocene Sloko Group rhyolite volcanic flows graded up to 58 parts per million arsenic (R41573) (Assessment Report 14367).