The Tom occurrence is located approximately 3 kilometres north of Mount Carruthers.

The showing area is reported to occur in banded tuffs. Chalcopyrite mineralization occurs in shears and malachite and is commonly observed throughout the tuffs.

The plotted Tom location is now described (2021) as being underlain by Lower Jurassic volcanics of the Telkwa Formation (Hazelton Group) consisting of maroon, green and purple subaerial andesitic to dacitic feldspar phyric flows, pyroclastic and epiclastic rocks, augite phyric to aphyric basalt, breccia, welded tuff. Sedimentary rock of the Upper Triassic Dewar Formation (Takla Group) is in contact with the Hazelton rock about 1 kilometre to the southwest. The regional geological setting is similar to that of the Carruthers Creek occurrence (094D 060).

In the early 1970s, Canadian Superior Exploration Limited prospected the region documenting any mineralization they found on geological maps. The Tom is one of those documentations.