The Chesapeake Bay watershed is a large area of land that drains into the Chesapeake Bay, the largest estuary in the United States. This watershed covers parts of six states: Maryland, Virginia, Pennsylvania, Delaware, West Virginia, and New York. It includes rivers, streams, and other waterways that flow into the bay, playing a crucial role in its health and ecosystem. The watershed is vital for the region's environment and economy, supporting diverse wildlife and providing resources for fishing, tourism, and recreation. Efforts to protect and restore the Chesapeake Bay focus on reducing pollution and preserving natural habitats within the watershed.