Langreo is a municipality located in the province of Asturias, northern Spain. It is part of the larger Comarca de Valle del Nalón and is known for its rich industrial history, particularly in coal mining and steel production. The area features a mix of urban and natural landscapes, with the Nalon River flowing through it. The town of Langreo has several neighborhoods, each with its own character. Key attractions include the Cultural Center of Langreo and the nearby Picos de Europa mountains, which offer opportunities for outdoor activities. The local economy has diversified in recent years, moving towards services and tourism.