The Klehini River NE occurrence is located in an area mapped as Devonian to Upper Triassic sediments, which are intruded by Oligocene granitic rocks of the Tkope River Intrusions. Of the showings reported, two are described as occurring in "greenstone" or "epidotized volcanic", while one occurs in "greenish chloritic skarn". The showings consist of sphalerite in greenstone (assay 17.14 grams per tonne silver, 7.97 per cent zinc), galena in vol- canics (assay 75.43 grams per tonne silver), and chalcopyrite in skarn (75.43 grams per tonne silver, and 1.66 per cent copper).