The Latea Cave in Sulawesi, Indonesia, has long been a burial site for the Pamona people, who have interred their dead in wood coffins. The practice of wood coffin cave burials is quite similar to the burials among the Toraja people in South Sulawesi. There have also been some coffin cave burials reported in Sabah (Borneo) and Thanh Hoa province in Vietnam.
Latea Cave, burial site of Pamona ancestors
Jakarta Post, 11 Feb 2007
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Latea Cave is more than 30 million years old. This natural cave is located in the limestone of Parere Hill. It is the place where the Pamona people, the indigenous residents of Poso, traditionally buried their ancestors.
The Pamona people have lived in the hills of Central Sulawesi for generations; particularly in the Wawolembo area. Their practice of putting the dead in caves did not stop until the 19th century.