The Irwell is a river in northwest England, flowing through the cities of Manchester and Salford. It stretches approximately 39 miles and is a tributary of the Mersey River. The river has played a significant role in the region's industrial history, serving as a vital waterway for transporting goods during the Industrial Revolution. The Irwell is known for its scenic beauty, with parks and walking paths along its banks. It is also home to various wildlife, including birds and fish. Efforts have been made to improve the river's water quality and surrounding environment, enhancing its recreational value for local communities.