There are a large and diverse variety of burial cairns, mounds and barrows, mainly from the Bronze Age and mainly on the eastern uplands, accounting for some 79 sites.
A further 70 defensive Iron Age sites such as hillforts and enclosures are found across the county.
All the Roman, early medieval, medieval and modern sites are listed at List of Scheduled Roman to modern Monuments in Ceredigion Scheduled monuments (SAMs) have statutory protection.
The compilation of the list is undertaken by Cadw Welsh Historic Monuments, which is an executive agency of the National Assembly of Wales.
[1] The list of scheduled monuments below is supplied by Cadw[2] with additional material from RCAHMW and Dyfed Archaeological Trust.