The A1 showings (previously the Gambler) are located near the mouth of the Sarita River on the southeast side of Barclay Sound, 60 kilometres south of Port Alberni and 19 kilometres north of Bamfield. The Sarita River area was explored at the turn of the century for iron ore and more recently, in the 1960's and 1970's, for copper.
The area is underlain by volcanic rocks of the Lower Jurassic Bonanza Group and limestone of the Upper Triassic Quatsino Formation, Vancouver Group. These have been intruded by granitic rocks of the Early to Middle Jurassic Island Plutonic Suite. The area is highly sheared and has undergone regional greenschist facies metamorphism.
Mineralization is abundant over a considerable area in highly sheared and metamorphosed limestone. Mineralization consists predominantly of pyrrhotite with inclusions of chalcopyrite, minor bornite and tetrahedrite accompanied by abundant garnet, diopside and epidote.
Eight outcrops were sampled in 1971, the highest assay was from outcrop No.7 (#59524) and the results were 0.31 per cent copper and 0.343 grams per tonne silver across a 1.6 metre linear exposure (Property File - Katanga Mines Ltd. Prospectus Sept. 1971). "Blind" diamond drilling in 1980 returned low gold and silver values from 3 holes (Assessment Report 7976).
Mineralization to the west near the Sarita River property (092C 036) on the old Omar claims occurs as lenses of magnetite and zones of pyrrhotite containing minor chalcopyrite. Silver values obtained may indicate the presence of tetrahedrite. Sampling indicates a zone about 914 by 610 metres with mineralization occurring in altered silicified zones and shears in volcanics.