The Jane prospect is west of Breen Lake, approximately 1.2 kilometres south east of Westholme.

The area is underlain by metavolcanics of the McLaughlin Ridge Formation, Sicker Group. The strata are intruded by gabbro, (informally known as the Mount Hall Gabbro), coeval with the Upper Triassic Karmutsen Formation (Vancouver Group), and by quartz-feldspar porphyries of the Late Devonian Saltspring Intrusive Suite (formerly known as the Saltspring Intrusions), (Massey, N.W.D., Personal Communications, 1991). The Sicker rocks are in unconformable contact with the Cretaceous Nanaimo Group to the north, and cut off to the south by the northwest trending Fulford thrust fault. A younger, left-lateral strike-slip fault, trending north-northeast, offsets the generally east trending rocks on the west side off Mount Richards (Massey, N.W.D., 1988).

The workings consist of two short adits and several open-cuts. Lenses of sulphides in schistose quartz-feldspar porphyry are exposed. The porphyry forms a dyke-like body about 140 metres wide trending 110 degrees parallel to the strike of the schistosity. It is bounded on both sides by massive-grained diorite that appears to intrude the porphyry.

Mineralization in the adit consists of lenses of fine-grained, dense, massive sulphides lying parallel to the schistosity of the porphyry. Pyrrhotite, sphalerite, chalcopyrite and pyrite are the principal sulphides, and small amounts of quartz and calcite form the only gangue material. The largest lens is about 45 centimetres wide and up to 1.5 metres long. A sample taken across 91 centimetres assayed 16.1 per cent zinc and 0.05 per cent copper (Minister of Mines Annual Report 1949, page 225)

In 1969, Canpac Minerals explored the area as the Sirius claims. A program of geological mapping and a ground magnetic survey was completed. In 1978, the area was staked as the Croft 2 claim and a program of geological mapping and soil sampling was completed. In 1983, the area was staked as the West claims by R.J. Bilquist and a program of prospecting was completed. In 1984 and 1985, Falconbridge optioned the property and completed programs of geochemical sampling and an airborne geophysical survey. In 1987, Falconbridge completed a drilling program of 10 holes, totalling 3170.7 metres, in the vicinity of Breen Lake on the West 1 claim. A lone drill hole, West 84-8, was completed on the Jane occurrence. No significant mineralization was intersected. In 2010, Westridge Resources completed a program of geological mapping and geochemical sampling on the Breen Lake area.