Dr Aron Mazel and Dr Stan Beckensall unearthed the 250 new panels during a two-and-a-half years trawl of some of England's most remote countryside - the moorlands of Northumberland. Photo:: North News and Pictures

Inspiration for the project came from Northumberland rock art specialist Dr Stan Beckensall, who donated his archive of books, photographs, drawings and rubbings to Newcastle University. Photo: Aron Mazel

More than 250 new examples of prehistoric rock arts carvings have been discovered. They were unearthed during a two-and-a-half year search of some of England's remotest countryside, in the moorlands of Northumberland. Photo: Aron Mazel

Experts are still grappling with the origins and meaning of the abstract carvings. They are believed to be the work of Neolithic and Early Bronze Age people between 6,000 and 3,500 years ago, although there are several theories. Photo: Aron Mazel.

The website includes an archive featuring around 6,000 images, including 360 degree photographs showing rock art in its landscape setting, drawings, digital images, and digitised slides and negatives. Picture: Stan Beckensall