The Bass Pyramid is a small, two sectioned oval, steep-sided granite island, with an area of 0.01 ha, in south-eastern Australia. A rock bridge connects the two sections. It is part of Tasmania’s Bass Pyramid Group, lying in northern Bass Strait between Flinders Island and the Kent Group. It was used intermittently from the 1940s until 1988 as a bombing and shelling target by the Australian airforce and navy. It is now a nature reserve since 5-Apr-1978.