The BT 20 occurrence is located on the east side of a small northeast- to north-flowing creek, approximately 4 kilometres southwest of Chuk Lake.

The region is underlain to the west by the Mississippian to Triassic Cache Creek terrane and to the east by the Quesnel terrane and the Omineca Belt. The boundary between the Quesnel and the Cache Creek terranes is probably the southern extension of the Pinchi fault system.

The occurrence area is underlain by serpentinite ultramafic rocks and basaltic volcanic rocks of the Pennsylvanian to Triassic Cache Creek Complex, which have been intruded by Eocene granitic rocks.

Locally, an outcrop of granitic intrusive hosting quartz veins and stringers with pyrite and chalcopyrite has been identified.

In 2015, a rock sample (1048627) of quartz vein material assayed 11.4 grams per tonne silver, whereas a sample (1592283) of quartz-veined granite or granodiorite from a test pit assayed 0.124 per cent zinc and 8.3 grams per tonne silver (Assessment Report 35809).

In 2016, four channel samples (1592405, 1592406, 1592408 and 1592409) from a trench yielded from 0.107 to 0.135 per cent copper (Assessment Report 36345).

In 2017, a sample (37962) from drillhole 3 yielded 0.13 per cent copper over 0.45 metre (Assessment Report 37235).

Work history

In 2010 and 2011, Porpoise Bay Minerals Ltd. completed programs of geological mapping and geochemical (rock, silt and soil) sampling on the area as the BT 1-17 claims of the Bobtail property.

During 2010 through 2017, Porpoise Bay Minerals Ltd. completed programs of geological mapping, prospecting, test pitting, trenching, geochemical (rock, silt and soil) sampling and several short drill holes, totalling 7.0 metres, on the property.