The Ox showing is situated on the east bank of the Similkameen River, opposite the mouth of Sunday Creek and 21 kilometres south of Princeton.

The area is underlain by the eastern facies of the Upper Triassic Nicola Group, comprising mafic augite and hornblende porphyritic pyroclastics and flows. These volcanics are intruded by small bodies and dykes of diorite related to the Early Jurassic Copper Mountain stock of the Copper Mountain Intrusions to the north.

Chalcopyrite, pyrite and magnetite are reported to occur as disseminations in brecciated volcanics (pyroclastics?), sediments and diorite.