The sandy boulder texture of moraine deposits near the left margin of Victoria Lower Glacier. A wide range of lithologies are represented, including basement granites and gneisses, Permian Beacon Supergroup sandstones, and Jurassic Ferrar Dolerite. The upstanding dark-grey rock is dolerite, and has been subject to extreme wind abrasion, as indicated by the scalloped surface that faces inland, from whence powerful katabatic winds originate.