The AB showing is located on the south side of Cowichan Lake, 1 mile south-southeast of the Island No.6 Highway.
The area is underlain by volcanic rocks of the Lower Jurassic Bonanaza Group which have been intruded by Early to Middle Jurassic Island Plutonic Suite granitic rocks.
Chalcopyrite, pyrite and chalcocite are associated with the volcanic rocks. No other information is available.