Roundton Hill is a steep-sided volcanic hill rising to 370 metres in eastern Montgomeryshire, Powys, Wales, near the English border at Church Stoke. Its summit is crowned by an Iron Age hillfort and a Bronze Age burial cairn, with defences consisting of a single earth and stone rampart best preserved on the west side, while a natural cliff face forms the eastern defence. The entrance is on the northeast side with traces of a trackway ascending to it. Below the hillfort lie remains of a medieval house and enclosure. Now managed as a nature reserve by the Montgomeryshire Wildlife Trust since 1985, old lead and barites mines on the hill provide roosting habitat for bats.
Roundton Hill

| Type | Fortress/citadel |
|---|---|
| Period | 1500 - 500 BC |
| Country | Wales |
| Coordinates | 52.5482° N, 3.0427° W |
Wales