Cyfres Cip ar Gymru/Wonder Wales: Clawdd Offa/Offa's Dyke

A bilingual introduction to the 8th century earthwork on the border between Wales and England. Constructed from a mixture of earth, mud, stones and branches and extending from the Dee Estuary in the north to the Severn Estuary in the south, Offa's Dyke has proved to be a physical, geographical and cultural boundary between England and Wales.