The area of the Lisa 3 showing is underlain by marine sedimentary and volcanic rock of the Devonian to Permian Stikine Assemblage. This stratigraphy is intruded to the east by the Late Triassic Seraphim Mountain Pluton consisting of quartz monzonitic rock.

In 1989, Corona Corporation prospected the Lisa 3, 4, 6 and 7 claims (of the Inhini property) and collected 13 heavy mineral, 14 silt and 47 rock samples (Assessment Report 19970). In 1990, Link Resources Inc. carried out a 700-kilometre airborne magnetic and EM survey over the entire Inhini Property (Assessment Report 20972).

A small gold showing was located on a small shoulder on the west side of Simma Mountain. An initial grab float sample (82221) by Corona Corp in 1989 of a narrow quartz vein assayed 19.82 grams per tonne gold and prompted a more detailed examination of the area.

The area consists of a narrow (about 100 metres wide) fault bound wedge of andesitic lapilli tuff/tuff breccia in fault contact with limestone. The composition of the tuff/breccia unit becomes more siliceous to the west which appears to have minor control on quartz veins as these veinlets (1 to 10 centimetre wide) are common (2 or 3 per metre) in a 30 to 50 metre square area of the andesitic tuff-breccia unit but do not occur in the more siliceous unit. Veinlets contain chalcopyrite, sphalerite, malachite and trace galena plus/minus tetrahedrite. Local massive chalcopyrite and disseminated chalcopyrite can be located in the tuff adjacent to the veins and along fractures. Twelve grab samples taken from these veins ranged up to 2.21 grams per tonne gold (Assessment Report 19970).