The Donnelly River is a river located in the southwestern region of Western Australia. It flows through the Donnelly River National Park and is known for its scenic beauty, surrounded by tall trees and diverse wildlife. The river is a popular spot for activities such as fishing, kayaking, and hiking along its banks. The river is approximately 30 kilometers long and eventually joins the Warren River. Its waters are fed by rainfall and contribute to the local ecosystem, supporting various plant and animal species. The Donnelly River area is also significant for its historical timber industry, which played a vital role in the region's development.