The Walt occurrence is located north of the Keogh River, approximately 1.5 kilometres east of O’Connor Lake.

The region is largely underlain by Upper Triassic volcanic rocks of the Vancouver Group, Karmutsen Formation. Several kilometres west Tertiary volcanics are present. Relatively small bodies of Jurassic Island Intrusions have intruded these rocks.

Locally, disseminations and amygdules of chalcopyrite, pyrite, bornite and chalcocite are present in Karmutsen andesites. Gabbro (?) or coarse-grained volcanics (?), of possibly Tertiary age, show malachite staining.

The area was originally staked in 1969 by J. Walkton and a program of geophysical surveys was completed on the Keogh and Walt claims. In 2008, M. Schau completed a program of prospecting.