The SDR showings are located just south of the contact between the Lower Jurassic Rossland Group (Elise Formation) volcanics and the Early Jurassic Rossland monzonite stock. The Elise Formation in this area has recently been mapped as argillaceous siltstone (Unit Je10a, Open File 1991-2).

A zone about 150 metres by 150 metres contains rocks that have been contact metamorphosed and host abundant magnetite and epidote. A sample taken in 1947 across 46 centimetres of "magnetite vein" assayed 1.37 grams per tonne gold, 0.27 per cent zinc and trace silver and lead (Assessment Report 24, Sheet 2). In 1981, a grab sample taken from the highly altered rock assayed 1.03 grams per tonne gold, 1.03 grams per tonne silver, 0.16 per cent copper, 0.01 per cent lead and less than 0.01 per cent zinc (Assessment Report 9827). Associated with the contact zone is a highly siliceous zone which hosts quartz veinlets with chalcopyrite and arsenopyrite.

In 1988, the zone was trenched in an east direction for about 75 metres. Within the trenched area, the mineralization consists of a central core of massive arsenopyrite, flanked by a much broader zone of massive magnetite, pyrite, pyrrhotite and minor chalcopyrite. Alteration minerals observed here were epidote, calcite, hornblende, garnet, muscovite, and graphite. One trench sample site exhibiting strong silicification assayed 17.62 grams per tonne gold across 2 metres.