The area is predominantly underlain by limestones and argillites of the Jurassic to Triassic Kunga Group. These rocks are intruded by felsic sills related to the Middle to Late Jurassic Burnaby Island Plutonic Suite. Upper Triassic Vancouver Group, Karmutsen volcanics, conformably underlie the Kunga limestones.
Skarns occur near the base of Camp Creek. About 350 metres west of the creek are epidote-pyrite-pyrrhotite skarns, plus ubiquitous calc-silicate minerals and minor chalcopyrite. No anomalous values of gold or arsenic were reported.