Azraq (Arabic: الأزرق meaning "blue") is a small town in Zarqa Governorate in central-eastern Jordan, 100 kilometres (62 mi) east of Amman.

[3] The spring-fed oasis provided a more or less constant source of water throughout this period, and probably acted as a refugium for humans and other animals at times when the surrounding area dried out.

[4] The oasis itself changed as the climate fluctuated: at times a permanent lake, a marsh, or a seasonal playa.

[4] Animals found in Lower Palaeolithic layers at the Shishan Marsh site include a large elephant (probably the extinct Palaeoloxodon recki), a smaller elephant (probably Elephas hysudricus, the ancestor of the living Asian elephant), the extinct narrow-nosed rhinoceros, camels, lions, wild horse, an ass (either Equus heimonius or Equus hydruntinus), gazelles, aurochs, and wild boar.

Qasr Azraq was built by the Romans in the 3rd century AD, and was heavily modified in the Middle Ages by the Mamluks.