The Swimshow showing area is underlain by Lower Permian limestone of the Stikine Assemblage.

The zone consists of poddy mineralization that is traceable for around 1 kilometre. Mineralization consists of either massive pyrrhotite with minor chalcopyrite and bornite, or massive pyrite and arsenopyrite with minor galena, sphalerite and chalcopyrite.

The pyrrhotite-rich pods occur with actinolite along the contact between recrystallized marble and granodioritic dikes. These pods contain up to 49.12 percent iron, 0.58 per cent copper, 30.3 grams per tonne silver, 1.89 grams per tonne gold and 0.0400 per cent tungsten (Assessment Report 21192).

The pyrite-rich pods occur within the recrystallized marble but within close proximity to the granodioritic dikes. These pods contain more significant precious metals with assays of up to 108.87 grams per tonne gold, 210.3 grams per tonne silver, and 20.33 percent arsenic, and geochemical analysis of up to 24.71 percent iron, 0.42 per cent copper, 0.72 per cent lead, 0.30 per cent zinc and 0.0054 per cent cadmium (Assessment Report 21192).

Work History

In 1989, one day was spent prospecting the claims on behalf of Golden Arrow Resources Ltd. At this time, 11 rock samples were collected. No results of any significance were encountered.

In 1990, Golden Arrow conducted a program of geological mapping, prospecting, contour soil sampling, rock geochemistry and minor trenching. A total of 54 man-days were spent on the claims during which 531 soil samples, 18 stream sediment silt samples and 98 rock samples were collected. During this time four new showings were documented: Swimshow, Waterfall, Gully and Knob.