List of Roman-to-modern scheduled monuments in Ceredigion
Ceredigion is a large rural county in West Wales. It has a long coastline of Cardigan Bay to the west and the remote moorland of the Cambrian Mountains in the east, with the mountainous terrain of Plynlimon in the northeast.
Source: Wikipedia — List of Roman-to-modern scheduled monuments in Ceredigion (CC BY-SA 4.0)