Volunteers from CAS have played a big role in clearing Castilly Henge over winter as part of a Monument Management Scheme funded by Historic England and managed by Cornwall Archaeological Unit. The clearance of vegetation allowed for an analytical survey of the monument by Olaf Bayer and Elaine Jamieson and a geophysical survey by Neil Linford and Andy Payne. The geophysical survey revealing the existence of a hitherto unknown stone circle within the earthwork! For more information, please consult this article by the Guardian.