Ba'ja is a Neolithic village 14 kilometres north of Petra, Jordan. Like the nearby site of Basta, the settlement was built in c. 7000 BC, during the PPNB period. Ba'ja lies at an altitude of around 1,160 metres, and is only accessible with a climbing route through a narrow, steep canyon. It is one of the largest neolithic villages in the Jordan area. Near the entrance to the site is Ba'ja I, an Islamic settlement with 2-3 layers of an older Nabataean settlement.

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