Österdalälven is a river located in central Sweden, flowing through the province of Dalarna. It stretches approximately 250 kilometers and is known for its scenic beauty and recreational opportunities. The river originates from the Österdalälven lake and eventually merges with the Dalälven river. The river is significant for both its ecological and cultural importance. It supports various wildlife habitats and is popular for activities such as fishing, kayaking, and hiking along its banks. The surrounding areas are rich in Swedish history and traditions, making it a popular destination for both locals and tourists.