Devil's Bridge is a bridge that spans the Mynach, a tributary of the Rheidol. It consists of three bridges built above each other. The most recently built was an iron bridge in 1901 which was built over a stone bridge constructed in 1753 when the original bridge was thought to be unstable, using the original bridge built (1075 - 1200) to support the scaffolding. The bridge is at a point where the Mynach falls around 90 meters and meets the Rheidol.