Situated in the lush Lenggong Valley, the property includes four archaeological sites in two clusters which span close to 2 million years, one of the longest records of early man in a single locality, and the oldest outside the African continent. It features open-air and cave sites with Palaeolithic tool workshops, evidence of early technology. The number of sites found in the relatively contained area suggests the presence of a fairly large, semi-sedentary population with cultural remains from the Palaeolithic, Neolithic and Metal ages.