The Knight 4-1 occurrence is located on a ridge in the northern head waters of Last Creek, at an elevation of approximately 2250 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 shear zone in a poorly sorted greywacke hosts quartz-carbonate veinlets with chalcopyrite and malachite mineralization. A 1.0 metre wide chip sample (R115146) assayed 0.367 per cent copper, while a grab sample (R115145) assayed 0.318 per cent copper and 0.143 gram per tonne gold (Assessment Report 21837).

In 1991, Noranda Mining and Exploration completed a program of geochemical sampling and geological mapping on the area as the Knight 1-4 claims.