The Mocking Bird and Hartford showing is underlain by Devonian to Upper Triassic metasediments intruded by Oligocene granite of the Tkope River Intrusions. Test pits, north and east-northeast of a pair of small lakes at the head of an east-flowing tributary of Schulz Creek, expose serpentine skarn in marble and argillite with bornite, sphalerite, arsenopyrite, and pyrite. Three samples from different pits assayed from 6.86 to 9.6 grams per tonne silver, and 0.09 to 0.20 per cent copper.