The Bill showing is located within the bed of Williams Creek, 700 metres south of the historic town 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 showing consists of a quartz vein that is well mineralized with pyrite, galena and sphalerite. The vein is 20 centimetres wide, dips steeply to the north, and is hosted by dark grey silty phyllites and phyllitic quartzites of the Snowshoe Group. It was located during regional mapping by the BC Geological Survey Branch in 2002. A sample of mineralized vein material analyzed 2.08 per cent lead, 4.1 per cent zinc, and greater than 100 grams per tonne silver (Fieldwork 2002, pages 77-96).