The remains of Castell Flemish

Castell Flemish, also known as Castell Fflemish, is a hillfort located near Tregaron in Ceredigion, Wales. The monument consists of two spurs with a large gap between them that defend the top of the hill. It is generally believed to date to the Iron Age period, although some suggest it might also date to the Early Middle Ages.

The fort is registered by Cadw under the unique number CD021. While there are around 300 hillforts on the Cadw list, archaeologists note that there are approximately 570 in total across Wales. These fortifications were typically built on hills to provide a military advantage for defenders.

Before the Roman conquest, these sites served as homes and military garrisons. Many were subsequently repurposed during the Roman period, such as Dinorben in north Wales. The hillforts of Britain existed between 200 BC and AD 43.

Sources: Wikipedia, OpenStreetMap, Wikidata, Wikimedia Commons