The showings are situated on the west side of Drake Inlet (Princess Royal Island) near the adjoining Cornwall Inlet (referred to in older reports as Rivers Bight).

In July 1920, the Cordilla group, consisting of six claims, the Mountain View, Royal, Landslide, Bight, Counder and Present, was staked by Cordilla and Koski. The claims were bonded in 1921 to the Rivers Bight Syndicate.

During 1921-22, a 91-metre adit was driven along the mineralized shear zone but the results were unsatisfactory, and the bond lapsed in 1922. In 1926 the owners extended the adit a short distance.

Pyritized quartz veins occur in a shear zone, striking 155 degrees and dipping vertical, in quartz diorite of the Coast Plutonic Complex. A sample assayed 4.11 grams per tonne gold and 69 grams per tonne silver (Minister of Mines, Annual Report 1922, p.43).