The section of the Celtic Queen and Trilby claims where the showings are located are underlain by green volcanic conglomerate, breccia and sandstone of the Lower Jurassic Elise Formation (Rossland Group) (Assessment Report 16751, Map 2). Within about 50 metres to the north is the contact with the Early Jurassic Rossland monzonite, an east trending stock with a wide thermal aureole and, locally, a gradational contact with the country rocks.

An east trending fissure carrying mixed sulphides is exposed in a shaft and a number of cuts for a length of up to 60 metres. At the surface the vein is from 0.3 to 0.6 metres wide but widens to 1.2 metres in the shaft. The vein dips 85 degrees to the north and consists of quartz with sphalerite, pyrite, pyrrhotite, arsenopyrite and galena. A sample taken across 1.2 metres assayed 4.80 grams per tonne gold, 13.71 grams per tonne silver, 0.06 per cent lead and 7.2 per cent zinc (Assessment Report 18310, page 14).