A series of iron skarn showings occur in a large bluff over a length of 85 metres. The area is underlain by diorite of the Early to Middle Jurassic Island Plutonic Suite. Small outcroppings of silicified limestone, adjacent the skarn, are likely remnants of the Upper Triassic Quatsino Formation, Vancouver Group.

Massive magnetite occurs in pods with some skarn material, entirely surrounded by skarn material composed of garnet and epidote. The largest deposit covers approximately 21 by 4.5 metres of area. A sample of the magnetite yielded 50 per cent iron, 0.24 per cent sulphur, 22 per cent silica, and no phosphorus. A preliminary estimate of actual ore was reported at 18,000 tonnes and possible ore at 250,000 tonnes (Ministry of Mines Annual Report 1916, page 286). No grade estimate was given.