The Grizzly-Ork occurrence is located approximately 13 kilometres west-southwest of the confluence of Two Lake Creek and the Sustut River (Geology, Exploration and Mining in British Columbia, 1973).

The regional and local geology is similar to the Birch showing (094D 077).

The showing is hosted in Lower Jurassic Telkwa Formation (Hazelton Group) tuffs and agglomerates, which are intruded by porphyry dykes. The mineralization consists of disseminated bornite and chalcopyrite in the volcanic rocks.