The Knight and Day showing occurs 2.0 kilometres south-southwest of the confluence of Forty-seven Mile and Whipsaw creeks, approximately 27 kilometres southwest of Princeton.
The region in the headwaters of Whipsaw Creek is underlain to the west by intrusive and metamorphic rocks of the Late Jurassic to Early Cretaceous Eagle Plutonic Complex and to the east by metamorphosed volcanics and sediments of the Upper Triassic Nicola Group. The contact between the two units strikes north-northwest. A northwest-trending ultramafic body, possibly related to the Early Jurassic Tulameen Ultramafic Complex, intrudes Nicola Group rocks east of the showing. The body is 100 metres wide and consists of pyroxene porphyroblastic amphibolitic schists.
Surface exposures reveal two breccia zones, each at least 30 metres wide, in chlorite sericite schist of the Nicola Group. The zones are approximately 30 metres apart. This deposit is one of several occurrences (S and M, MINFILE 092HSE073; Five Fissures, MINFILE 092HSE098) hosted in the same fault zone, which extends north-northwest across Whipsaw Creek for at least 1.5 kilometres.
The breccias contain fragments, 2.5 to 25 centimetres wide, in a matrix of sheared clayey rock and fault gouge. Many of the fragments consist of massive to semi-massive sulphides, including sphalerite, galena, pyrite, chalcopyrite and argentite with carbonate. In 1973, three selected samples of galena-rich fragments averaged 0.13 gram per tonne gold, 124 grams per tonne silver, 0.18 per cent copper, 4.84 per cent lead and 3.22 per cent zinc (Samples 1A to 1C; Assessment Report 4170).
A tunnel, 46 metres below the surface exposures, encountered a breccia zone striking 150 degrees and dipping 75 degrees northeast. This zone is 0.6 to 1.5 metres wide and consists of silicified and carbonitized fragments cemented by quartz and calcite. Pyrite, chalcopyrite, galena and sphalerite occur irregularly throughout the breccia. A sample taken across 0.44 metre assayed 7 grams per tonne gold, 21 grams per tonne silver, nil copper, trace lead and 3.0 per cent zinc (Minister of Mine Annual Report 1915, page 247).
The showing was trenched and tunnelled by W. Knight and C. Day between 1911 and 1928. Whipsaw Mines Ltd. conducted trenching, soil sampling and geological mapping between 1970 and 1973. During 1982 through 1993, World Wide Minerals completed various programs of prospecting and geochemical sampling and drilled 16 holes, totalling 1769 metres, on the area. During 1995 through 1998, Martech Industries completed 10 diamond drill holes, totalling 1033.5 metres, on various targets over the Whipsaw property. In 2000, a pulp sampling program was completed to test for platinum group elements from former trenching and drilling programs but results were disappointing. In 2005, Canfleur Mining completed a program of sampling and seven diamond drill holes, totalling 1452.8 metres, on the area. During 2010 through 2015, Martech Industries completed programs of rock and soil sampling.
