Extensive prehistoric field system of the mid 4th millennium bc preserved below blanket bog on the Atlantic coast of Ireland. Investigations by Seamus Caulfield show that the field system covers more than 1000 ha and comprises long parallel low stone walls up to 2 km in length and 150 to 200 m apart, with cross‐walls between defining individual fields up to 7 ha in extent. At least three broadly contemporary court cairns lie within the field system, while pollen analysis indicated a period of intensive farming 3700–3200 bc with abandonment and the development of blanket bog underway by c.2700 bc.
S. Caulfield, 1988, Céide Fields, Ballycastle, Co. Mayo. Ballycastle: privately published