The CWA occurrence is located just east of Provencher Lake about 90 kilometres east-southeast of the community of Dease Lake.

The area is underlain by upper Mississippian to Permian Cache Creek Complex rocks including volcanic, metavolcanics (greenstone), metasediments, gabbro and tectonically emplaced ultramafic rocks. The upper Mississippian to Permian Cache Creek Complex ultramafic rocks consist of peridotite, dunite and pyroxenite which are generally serpentinized.

Several serpentinite bands and associated jade lenses are shown on the geology map included with Assessment Report 5100. These bands occur over a distance of at least 1.6 kilometres and were once covered by the CWL and CWA claims.

The main serpentinite showings is described as a band, about 60 metres wide, trending east and sandwiched between two steeply dipping zones of greenstone, schist and metasedimentary rocks. The central portion of the serpentinite is bright green antigorite but the margins are dense and dark green. A thin limestone band occurs on the north side between the two types of serpentinite. At the northern contact of serpentinite and metasediments, a narrow (30 to 60 centimetres) band of poor quality black jade is present. At the southern contact, a 90-centimetre-thick lens of jade was observed. Farther north on the same ridge, a serpentinite band of about the same width is strongly sheared and altered to talc. A poor quality lens of jade occurs at its northern contact with greenstone.

The property was mapped by Frobex Ltd. in 1972 and by Nephro-Jade Canada in 1973.

Prospecting in 2017 by Cassiar Jade Contracting Inc. found a series of boulders near the location of the occurrence on the Plateau property. The boulders showed high potential for viable jade. One boulder was drilled and petrographic samples were taken.