The property lies within the Shuswap Metamorphic Complex along the northwestern margin of the Frenchman Cap Dome. The core of the dome is composed of a mixed paragneiss and orthogneiss succession of probable Aphebian age. The dome is mantled by unconformably overlying metasedimentary rocks consisting of quartzites, calcare- ous schists, marbles and pelitic schists, and locally intruded by carbonatite.

The mineralized zone occurs on the lower (eastern) limb of a northeast trending part of the Grace Mountain syncline - a tight isoclinal fold. Disseminated galena, 15 centimetres thick and about 20 metres in length, occurs in limestone bounded by grey banded garnet biotite gneiss and muscovite biotite gneiss.

In 2011, TriGold Resources Inc. completed a program geochemical (rock and soil) sampling and an airborne geophysical survey on the area as the Copper King-Cotton Belt property.