Brian John

[2] He worked as a field scientist in Antarctica and spent eleven years as a geography lecturer at Durham University.

He is the author of The Stonehenge Bluestones and he has made extensive studies of the relationships between megalithic structures and landscape in the Preseli region of Pembrokeshire.

John is also actively involved in environmental and community organisations; in 1980 he founded Eco Centre Wales in Newport and is one of the leaders of the community group GM Free Cymru.

His Glaciers and Landscape (written with David Sugden), a university textbook, remained in print as a geomorphology classic for almost 30 years.

In recent years John has done radio and TV work, and has featured in the BBC2W programme called The Man from Angel Mountain and on the BBC1 One Show.