An international research team has found artifacts and elaborate rock art in the lava tube of Umm Jirsan in Saudi Arabia, suggesting that the site provided shelter for ancient humans for over 7,000 years.
Published last month, the study, First evidence for human occupation of a lava tube in Arabia: The archaeology of Umm Jirsan Cave and its surroundings, northern Saudi Arabia, concluded that the area was a key transitory location for cultural trade between ancient people.
Previously, desert studies of ancient Arabia faced…
