“The whole landscape is full of prehistoric monuments and it is extraordinary in a way that this has been such a blind spot for so long archaeologically,” he said.
“But in 1999 a group of student friends and myself started to survey this area of Amesbury.”
The site, which contains a natural spring, is the nearest source of fresh water to Stonehenge.
And Mr Jacques, with the theory it may have been a water supply for early man, believed there could be pristine and ancient archaeology waiting to be discovered.
Story: BBC News | Photo: Wikimedia Commons