The Siurana River is a small waterway located in the province of Tarragona, Spain. It flows through the picturesque region of Catalonia, known for its stunning landscapes and rich history. The river is a tributary of the Ebro River, which is one of the longest rivers in Spain. The Siurana River is particularly famous for its clear waters and the scenic Siurana Valley, which attracts outdoor enthusiasts and nature lovers. The area is popular for activities such as hiking, rock climbing, and birdwatching, making it a great destination for those looking to explore the natural beauty of Catalonia.