The Big Billy (BB) occurrence is located on the south side of a small creek that enters Fredrickson Creek from the west, approximately 7.5 kilometres east of the northern end of Fredrickson Lake, about 170 kilometres north-northwest of the community of Germansen Landing.

Regionally, the area lies in the eastern margin of the northern portion of the Quesnel Trough and is underlain by a north-northwest trending band of Devonian to Permian volcanic rocks; marine sedimentary and volcanic rocks of the Pennsylvanian to Permian Lay Range assemblage and volcanics of the Upper Triassic Takla Group. These units are in fault contact with undivided sedimentary rocks, limestone, marble, calcareous sedimentary rocks, greenstone metamorphic rocks, mudstone, siltstone, shale, fine clastic sedimentary rocks, argillite, greywacke, wacke and conglomerate turbidites of the Neoproterozoic Stelkuz, Tsaydiz, Espee and Swannell formations (Ingenika Group) to the east, and an Early Jurassic quartz monzonite and monzodioritic to gabbroic intrusive exposed to the west.

Locally, a gossanous zone associated with a northwest trending and southeast dipping fault zone hosts a moderately to well developed area of quartz stockworking in a strongly pyritized and silica-, sericite- and iron-carbonate altered clastic metasediment (phyllite). The quartz vein, up to 20 centimetres wide, hosts variable amounts of pyrite with minor chalcopyrite, galena, sphalerite and rare visible gold. The fault zone and associated stockwork veining is approximately 25 to 110 metres wide and has been traced for approximately 1900 metres along strike to the northwest. The veins are thought to be at least, in part, stratabound.

In 2007, five of eight samples yielded anomalous gold values from 0.26 to 6.80 grams per tonne gold (Assessment Report 29926). The following year, sampling yielded up to 10.6 grams per tonne gold over 2.0 metres from the hangingwall side of the mineralized structure (sample A19; Assessment Report 30845). In 2013, a 0.25-metre-wide grab sample (RGKLR0014) yielded 0.45 gram per tonne gold, whereas a float sample (RGKLR002) yielded 1.23 grams per tonne gold (Assessment Report 34343).

In 2007 and 2008, Orestone Mining Corp. completed programs of prospecting and rock, silt and soil sampling on the area as the Laforce 1-29 claims. In 2013, the area was prospected and rock and soil sampled by J.B. Kreft.