The Pani claim is located on Williams Creek, about 3 kilometres south of Barkerville.
The showing lies within the Barkerville Terrane of the Omineca Belt. The Barkerville Terrane is in thrust contact with Triassic Quesnel Terrane rocks to the west and Hadrynian to Lower Paleozoic Cariboo Terrane rocks to the east. The Barkerville Terrane in this region is underlain by the dominantly metasedimentary rocks of the Hadrynian to Lower Paleozoic Snowshoe Group. In this area the Snowshoe Group comprises limestone, phyllite and quartzite. These rocks have been regionally metamorphosed to greenschist facies.
The Pani showing area is underlain mainly by argillite and siltstone of the Harveys Ridge succession, Snowshoe Group. Subparallel quartz veins trending northwest, alternate with country rock over a width of about 18 metres. These veins contain galena, sphalerite and pyrite in places. In 1930, a selected sample of the mineralization assayed 171.4 grams per tonne silver, 6 per cent lead, 2 per cent zinc and trace gold (Minister of Mines Annual Report 1930, page 167).