Global Volcanism Program | Image GVP-01653
Lolobau is located on the western rim of a 6-km-wide caldera, which formed about 12,000 years ago on the 8 x 13 km Lolobau Island. It is seen here from the south beyond the lower flanks of Ulawun. The smaller peak to the right is located along the eastern caldera rim.
Photo by Robert Citron, 1970 (Smithsonian Institution; courtesy of William Melson)