The area is underlain by andesites of the Jurassic Hazelton Group. The Copper Dollar showing contains gold mineralization in a banded quartzose structure. Samples contain up to 6.6 grams per tonne gold (Minister of Mines Annual Report 1914). The Eagle's Nest showing carries traces of gold and silver in a zone containing copper minerals. It lies about 500 metres northwest of the Copper Dollar.