The Matt area is underlain by Upper Triassic calcareous sediments and andesitic tuff (Stuhini Group) intruded by a polyphase body of undetermined dimensions ranging in composition from hornblende diorite to quartz feldspar porphyry. The area is mapped as being underlain by the Middle Jurassic Warm Springs Mountain Pluton.
Mineralization observed on the small portion of the claims examined consists of fairly narrow (0.3 metres to 2.7 metres) chalcopyrite/pyrrhotite bearing slightly silicified shear zones and chalcopyrite/magnetite bearing massive garnet skarns developed at the junction of the mineralized shears and limestone pods.
Channel sampling of the structurally controlled chalcopyrite located in the eroded cavern in the west-facing cliff resulted in assays returning 1.45 per cent copper, 14.74 grams per tonne silver and 28 parts per billion Au across 2.7 metres (Samples 81919 to 81921, Assessment Report 20468). Channel sampling of the massive garnet skarn developed within a limestone pod at the intersection of the above mentioned structure and the adjacent quartz porphyry yielded a maximum of 0.64 per cent copper with low Ag and Au values (Sample 81923, Assessment Report 20468).
The property was staked by Corona Corporation in 1990 work and in the same year work included geological mapping and rock chip sampling on some of the more accessible and obviously mineralized portions of the property. During the program a total of 23 rock samples were taken. No other work before or after 1990 is documented.