The Hisnit-South occurrence is located on the western shore of Hisnit Inlet, Nootka Sound, approximately 35 kilometres west of the town of Gold River.

The Hisnit South Showing is a roadcut exposure (~10 m wide) of strongly hematite- and limonite-altered volcanic rocks that host semi-massive pyrite-chalcopyrite mineralization. A 2.0 m wide, relatively unaltered, coarse grained biotite granodiorite dike is present in hanging wall to Hisnit South Showing.

The area is underlain by metamorphic rocks of the Paleozoic to Jurassic West Coast Crystalline Complex. To the north, a northwest trending graben structure contains a northeast striking and northwest dipping stratigraphic succession of Triassic Quatsino limestone, Triassic Parson Bay Formation sediments and Jurassic Bonanza Formation volcanics. The graben structure and other rocks in the area are intruded and possibly underlain by granodiorite stocks and sills of both the Jurassic Island Plutonic Suite and the Eocene Mount Washington Plutonic Suite.

Locally, a number of narrow, 0.1 to 0.5 metre thick, copper skarns or skarn veins are exposed in logging roads over a length of 250 metres. Sulphide mineralization consists of varying amounts of magnetite, chalcopyrite and pyrite.

From 2006 to 2008, D. Berkinshire completed programs of prospecting and rock geochemical sampling. From 2009 to 2011, Compliance Energy completed programs of geological mapping, geochemical surveys and airborne geophysical surveys. Sampling of the skarn zones has reported assays up to 3.69 grams per tonne silver, 5.4 per cent copper and anomalous values in cobalt, nickel, selenium, tellurium and zinc (Assessment Report 31749).

In 2020 rock sampling and geological mapping in the area of Hisnit North and Hisnit South showings was conducted for Mirva Properties Ltd. Resampling on the Hisnit South showing returned anomalous silver values up to 23.10 grams per tonne, copper values up to 4.19 per cent, and 497 ppm cobalt concentrations. Two samples of anomalous copper concentrations of 0.21 per cent Cu and 0.24 percent Cu (Hisnit West) were gathered from gossanous rocks on a new logging road west of the Hisnit South Showing.