THE PROPERTY IS UNDERLAIN PRIMARILY BY CHLORITE PHYLLITE, TSHINAKIN LIMESTONE, QUARTZITE, ARGIL- LITE AND MINOR SANDSTONE AND CONGLOMERATE OF THE (CAMBRIAN AND ORDOVICIAN) EAGLE BAY FORMATION. THE SOUTHWESTERN CLAIM-AREA IS UNDERLAIN BY ARGIL- LACEOUS LIMESTONE OF THE (UPPER TRIASSIC) SICAMOUS FORMATION. A MAJOR, NORTHERLY TRENDING, STRIKE- SLIP FAULT IS PRESENT ALONG THE CONTACT OF EAGLE BAY AND SICAMOUS FORMATION ROCKS. THE SEQUENCE IS CUT BY A FEW DACITE AND RHYOLITE DYKES. PYRITE MINERALIZATION IS PRESENT IN ARGILLITE, SANDSTONE, CONGLOMERATE AND PHYLLITE QUARTZ OR CALCITE VEINS AND VEINLETS OCCUR THROUGHOUT THE SEQUENCE.