The Knight 4-2 occurrence is located in the northern head waters of Last Creek, at an elevation of approximately 2000 metres.

The area is underlain by mainly sedimentary rocks of the Lower to Middle Jurassic Last Creek Formation. These have been intruded by Paleocene to Eocene feldspar porphyritic intrusives.

Locally, a grey, laminated siltstone hosts fine- grained disseminated and fracture- filling pyrite. A 1.0- metre wide chip sample (R114686) assayed 0.468 per cent copper (Assessment Report 21837).

In 1991, Noranda Mining and Exploration completed a program of geochemical sampling and geological mapping.