A 4.5 to 6.0 metre wide, east trending felsite dyke cuts massive biotite granodiorite and lamprophyre dykes of the Cretaceous to Tertiary Coast Plutonic Complex. Quartz veins, 0.2 to 1.4 metres wide, occur for several hundred metres along either side of the dyke.

The St. Paul vein dips 40 degrees north and is mineralized with pyrite, chalcopyrite, galena, sphalerite, arsenopyrite and gold. The vein occurs on the footwall side of the dyke, over a distance of 670 metres. A 7 centimetre channel sample of a sulphide rich zone, up to 1 metre wide, assayed 15.8 grams per tonne gold, 92.6 grams per tonne silver, 0.04 per cent copper, 1.88 per cent lead and 0.08 per cent zinc. A 1.4 metre channel sample assayed 5.7 grams per tonne gold, 3.43 grams per tonne silver, 0.006 per cent copper, 0.11 per cent lead and 0.09 per cent zinc (Assessment Report 13104).

A quartz vein, located about 250 metres to the southeast is also mineralized with scheelite and barite. Scheelite nodules as large as 7.62 centimetres in diameter were reported from this vein on the St. Paul claim.