William Britnell is a former director of the Clwyd-Powys Archaeological Trust and was a joint author of an earlier volume on the Black Mountains tombs – Gwernvale and Penywyrlod: two Neolithic long cairns in the Black Mountains of Brecknock (1984).
William Britnell is a former director of the Clwyd-Powys Archaeological Trust and was a joint author of an earlier volume on the Black Mountains tombs – Gwernvale and Penywyrlod: two Neolithic long cairns in the Black Mountains of Brecknock (1984).