34.3 S, 149.4 E
Lava-field province
Abercrombie caves are located at the volcano. The limestone caves are underlain by layers of basic volcanic rocks and shales. The main feature at the caves is the Grand Arch, 200 m long, 40 m wide, and 32 m high.
Younger section: 14-26 million years ago
Older section: 36-50 million years ago