The claim is underlain by Upper Triassic volcanic and sedimentary rocks of the Takla Group. Bedrock is generally obscured by glacial overburden but local outcrops consist of dark green to dark grey andesites and basalts. No mineralization is known to occur on the property but coincident magnetic and electromagnetic anomalies in the northwest and southeast part of the grid area are considered exploration targets for volcanogenic sulphide deposits.