The Ystwyth River is a river located in Wales, flowing through the scenic landscape of Ceredigion. It originates in the Cambrian Mountains and travels approximately 20 miles before joining the Rheidol River near the town of Aberystwyth. The river is known for its clear waters and rich biodiversity, supporting various fish species. The Ystwyth River has historical significance, as it was once vital for the local mining industry, particularly for transporting minerals. Today, it is popular for recreational activities such as fishing, walking, and cycling along its banks, attracting both locals and visitors to its natural beauty.