tibia were found which belongs to the same individual. Tom Harrisson also discovered Neolithic burial sites from 2,500 to 5,000 years ago. The discoveries led to more expeditions in 1959, 1965, and 1972. In 1960, Don Brothwell concluded that the Deep Skull belonged to an adolescent male who may be closely related to an indigenous Australian from Tasmania. In the 1960s, 122 human remains from Niah were brough to Nevada, United States. There is lack of paleogeography, stratigraphy, and archeological relationships to support Tom Harrisson's work. Therefore, more fieldwork was conducted by University of Leicester, in collaboration with other universities from Britain, Australia, United States and Sarawak State Museum from 2000 to 2003 to establish a more detailed history of Niah Caves. It was known as the "Niah Cave Project". Another dating of the charcoal and the Deep Skull itself was done in 2000. It showed that the age of the skeleton to be 37,000 years old. In 2006, studies from the Niah Cave Project found out that the ancient humans living in the Niah Caves probably already used mammal and fish trapping technologies, projectile technology, tuber digging, plant detoxification, and forest burning. In 2013 to 2014, uranium–thorium dating also confirmed the age of the skull. In 2016, another research done by Darren Curnoe noted that the Deep Skull was more resembling of a female adolescent and is more closely resembling the indigenous people of Borneo rather than Tasmanians or the two layer hypothesis which stated that original population of Southeast Asia were emigrated from Australia and later integrated with people from China. In 2010, 2019, and 2022, the Sarawak state government nominated the park for an UNESCO's World Heritage Site title. In 2020, all the 122 pieces of Niah human remains were returned to Sarawak. Geography Niah Caves is located on the northern edge of a limestone mountain named Gunung Subis (Mount Subis). The entrance is located at the west mouth of the cave. The location is 15 km from the South China Sea and 50 m above sea level. The west mouth of the Niah Caves is 150 m wide and 75 m high. Archaeology The cave is an important prehistorical site where human remains from 40,000 years ago have been found. This is the oldest recorded human settlement in east Malaysia. More recent studies published in 2006 have shown evidence of the first human activity at the