Gua Gunung Runtuh is located at Bukit Kepala Gajah, one of eight limestone caves in Lenggong Valley. Excavations started in 1990 (Zuraina; 1994, 2005) and uncovered evidence of Late Palaeolithic from 13,000 till 10,000, which may be the oldest cave site in Lenggong Valley. The caves are said to be more than 54, 0000 years old (Mokhtar; 2005) and left behind were tools, food and a human remain. The Man of Perak was the only Palaeolithic figure that was found intact in the country. From burial rites, burial offerings, shape, disease of Perak Man (Zuraina, 2005) painted a clearer picture of the community during the end Palaeolithic Pleistocene era.
Lenggong is located on Route 76 which links Kuala Kangsar with Baling. To reach it from the North-South Expressway (E1), exit the highway at the Kuala Kangsar Interchange (Exit 143). From there take Route 76 in the direction of Baling. The archaeological sites in Lenggong includes Bukit Jawa, Kota Tampan, Gua Gunung Runtuh and Gua Harimau.