The Autumn showing is located at the foot of the Stanley Smith glacier, about 17 kilometres southwest of the south end of Chilko Lake. The area is underlain by quartz diorite of the Early Tertiary Lord River pluton of the Coast Plutonic Complex. Much of the region in which the showing occurs is ice covered.

Chalcopyrite, bornite, molybdenite, pyrite and magnetite have been recognised within silicified rocks over an area approximately 2 by 0.5 kilometres.