Río Maullín is a river located in the Los Lagos Region of southern Chile. It flows approximately 60 kilometers from the Andes mountains to the Maullín Estuary, where it meets the Reloncaví Sound. The river is known for its scenic beauty and rich biodiversity, making it an important ecological area. The river's basin supports various wildlife and is a popular spot for fishing and recreational activities. The surrounding region is characterized by lush forests and agricultural land, contributing to the local economy. The town of Maullín is situated near the river's mouth, serving as a hub for tourism and commerce.