The Rant Point occurrence is located on the shoreline of Rant Point, near the entrance of Bedwell Sound.
The area is underlain by a thick succession of Paleozoic Sicker Group volcanics and sediments that have been intruded by numerous dykes, sills and plugs ranging from gabbro to granodiorite in composition.
The Sicker rocks comprise predominantly pyroclastic mafic to felsic volcanics with minor intercalations of chert, argillite and siltstone. The pyroclastics range from coarse lapilli (rarely breccia) tuffs to ash tuffs. Generally, the strata has an average strike of 150 degrees and dip of 50 degrees. Stocks of mafic intrusives belonging to the pre-Jurassic Westcoast Complex disrupt area strata.
Locally, a 4 metre wide exposure of massive sulphide is reported to occur in outcrop. The showing consists of 20 to 50 per cent sulphides (unspecified) hosted by pelitic sediments or tuff and schistose felsic and mafic metavolcanics. The massive sulphides are apparently concordant with the schistosity of the host volcaniclastics. In 1985, a sample of this material assayed 66.51 grams per tonne silver, 0.68 grams per tonne gold, 0.20 per cent lead, 0.026 per cent zinc and 0.006 per cent copper (Assessment Report 14003, Figure 3).
During 1985 through 1988, BHP-Utah Mines completed programs of geological mapping, rock, silt and soil sampling and ground geophysical surveys on the area as the Cypress, Maypay and Whitecliff claims.