The area is underlain by Triassic and older rocks comprised mainly of volcanics and volcaniclastics with minor interbedded limestone. To the east, these rocks are intruded by a Late Cret- aceous to Tertiary quartz monzonite pluton which may be part of the Coast Plutonic Complex.

On the claims, the rocks are regionally metamorphosed up to greenschist facies, and are described as greenstones intercalated with banded tuffs, argillaceous tuffs and coarse, sugary to massive limestone. The banded rocks strike north and dip east. Regional north trending faults and shears cut the greenstones. Felsitic alteration and minor pyritization occur near the faults. Felsite dykes and feldspar porphyry dykes crosscut the volcanics.

Mineralization on the claims consists of a band of pyrrhotite, which is 15 centimetres wide and 12 metres long, occurring in limestone near the number 1 claim post. The sulphide band strikes north and dips 50 to 75 degrees east and is parallel to the banding in the limestone unit. Scattered chalcopyrite and pyrite occur throughout the pyrrhotite-rich band and is thought to be replacement mineralization along bedding planes.

A 1.2 metre sample (1952) of this sulphide lens contained 0.7 per cent copper, 28 per cent iron and traces of gold, silver and lead. Another 3.0 metre sample contained 0.3 per cent copper and 31.1 per cent iron.

A small replacement deposit of lead-zinc-silver sulphides was reported in limestone near the end of Shazah Valley, just above the valley flat, on the southeast side (GSC Memoir 248 page 70).