The Campbell showing is located near the north-northwest base of Mount Hankin, south of Follinsbee Creek.

The area is underlain by pillow lava of the Upper Triassic Karmutsen Formation, Vancouver Group. Feldspar porphyry dykes and altered volcanics are reported nearby. The area to the east is underlain by diorite of the Jurassic Island Intrusions.

Mineralization in an old adit is reported to consist of Karmutsen volcanics hosting a siliceous band of rock, about 1.5 metres in width, that contains abundant copper stain. A grab sample assayed 0.19 per cent copper (Laanela, 1965).

About 500 metres east of the adit, at 240 metres elevation, a minor copper skarn occurs in volcanics. A 1.5 metre chip sample assayed 0.32 per cent copper (Laanela, 1965).

Fifty metres north of this skarn is a 30 centimetre wide quartz vein with magnetite and minor copper.

In the mid 1960’s, the area was explored by Gunnex Limited.