The Narcea River is a significant waterway located in the northern region of Spain. It flows through the province of Asturias and is approximately 113 kilometers long. The river originates in the Picos de Europa mountains and eventually merges with the Navia River. The Narcea River is known for its scenic beauty and rich biodiversity. It supports various species of fish, making it a popular destination for anglers. The river also plays a vital role in the local ecosystem and contributes to the agricultural activities in the surrounding areas.