The Cebollera River is a natural watercourse located in the province of La Rioja, Spain. It flows through the scenic Sierra de Cebollera Natural Park, known for its diverse flora and fauna. The river is a tributary of the Najerilla River and plays a vital role in the local ecosystem. The river is popular for outdoor activities such as hiking and fishing, attracting nature enthusiasts and tourists. Its clear waters and surrounding landscapes provide a picturesque setting, making it an ideal spot for those looking to enjoy the beauty of Spain's natural environment.