The South Park occurrence is located on a north- to northeast–trending ridge approximately 4.0 kilometres east of Park Creek and 10.0 kilometres north of the creek’s junction with the Stikine River.

Regionally, the area lies at the eastern edge of the Intermontane Belt near the Kutcho fault and marks the boundary with rocks of the Omineca Belt. The oldest rocks in the area are a sequence of lower greenschist–grade metamorphosed sedimentary and volcanic rocks correlated based on lithological similarities to rocks of the Asitka Group found elsewhere (Geological Survey of Canada Open File 483). Fossil evidence from later regional mapping dates at least part of the sequence as Mississippian (Geological Survey of Canada Paper 80-1B, pages 207-211). A tentative Devonian to Permian age is assigned to these rocks. Five stratigraphic units have been recognized and are, from oldest to youngest: feldspathic chlorite schist; phyllite, sericite and calcareous sericite schist; massive rhyolite, chert and sericite schist; carbonate; and upper feldspathic chlorite schist. The rocks are complexly folded and have undergone at least two phases of deformation. They are predominantly calc-alkaline with minor alkaline members. The sequence is similar in many respects to rocks of the Kutcho Formation in the southeastern corner of the Cry Lake map area. To the south of the Stikine River, Lower Jurassic Toodoggone Formation (Hazelton Group) volcanic rocks and Upper Cretaceous sedimentary rocks of the Sustut Group dominate. North and east of the Stikine River valley, two Early Jurassic plutonic bodies of the Black Lake Suite intrude these rocks. One is quartz monzonite in composition and the other is diorite. Small zones and pendants of Upper Triassic Takla (Stuhini) Group are found to the east and north of the Toodoggone Formation rocks.

Locally, a phyllite, later described as a carbonate-muscovite schist, associated with an andesitic dike and a fault zone hosts quartz-carbonate (ankerite) lenses and/or veins, up to 40 centimetres wide, with minor amounts of pyrite, chalcocite, sphalerite, and galena. Another possible zone of mineralization, located on a ridge to the southeast, comprises a belt of carbonate-muscovite-quartz alteration hosting brecciated quartz with disseminated arsenopyrite.

In 1982, a rock sample (7662) assayed 1.43 per cent copper, 0.125 per cent lead, 0.102 per cent mercury, 0.680 per cent antimony, and 320.0 grams per tonne silver (Assessment Report 10485).

In 1985, a float sample (P133-F) from the southeastern ridge is reported to have yielded 0.62 gram per tonne gold (Assessment Report 26661).

In 2001, a float sample (272519) assayed 1.28 per cent lead, 18.55 per cent zinc, and 58.0 grams per tonne silver (Assessment Report 26661).

Work History

The area has been explored in conjunction with the nearby Park (MINFILE 094E 028) occurrence.

During 1980 through 1983, Du Pont of Canada Exploration Limited conducted programs of prospecting, geological mapping and geochemical sampling on the area as the Park 1-5 claims. In 1987, Pacific Comox Resources Ltd. and Skylark Resources Ltd. completed a program of rock and soil sampling and a 2.1 line-kilometre ground electromagnetic (VLF) survey on the area as the Chuc 1-4 claims. In 1995, AGC Americas Gold Corp. conducted a program of soil sampling and minor rock sampling on the area as the Arc 1-4 claims.

During 2001 through 2005, Rimfire Minerals Corporation and Stikine Gold Corporation carried out a program prospecting; rock, silt and soil sampling; geological mapping and ground geophysical surveys on the area as the BT 1-3 claims. In 2006, Arcus Development Group Inc optioned the Williams property from Rimfire. In 2007, Equity Engineering Ltd was contracted by Rimfire to carry out a program of geological mapping, prospecting and rock, soil and silt sampling on the Williams property.

In 2014, Kiska Metals Corp. completed a program of prospecting, geological mapping and rock and soil sampling on the area.