The River Rheidol is a river located in Wales, flowing through the scenic Rheidol Valley. It originates from the slopes of Plynlimon, the highest point in Mid Wales, and travels approximately 20 kilometers before joining the River Ystwyth near Aberystwyth. The river is known for its picturesque landscapes and rich biodiversity. The Rheidol is also significant for its historical and industrial importance. It powered the local mining industry in the 19th century, particularly for copper and lead extraction. Today, the river is popular for recreational activities such as fishing, walking, and cycling along its banks.