The Man occurrence is underlain by sediments of the Upper Triassic Nicola Group at the western contact of the Late Triassic-Early Jurassic Guichon Creek batholith. The sediments comprise fine grained, siliceous, well banded greywacke that strikes northeast and dips 30 to 40 degrees to the northwest. Guichon rocks comprise diorite and quartz monzonite. A feldspar porphyry also occurs and exhibits frequent brecciation and angular inclusions of volcanic rocks.

Mineralization occurs in two areas, about 700 metres apart, and comprises small blebs and very fine disseminations of chalcopyrite and pyrite in feldspar porphyry.

In 1970, a geological and soil geochemical survey was conducted by Oso Exploration Services Ltd. on behalf of D.R. Morgan. In 1973, geological and soil geochemical surveys were conducted by Mantle Minerals Ltd. on behalf of D.R. Morgan and R.G. Hawley. In 1977, Bethlehem Copper Corporation carried out geological mapping and a soil geochemical survey on the Nepa claims which covered part of the original Man group of claims.