The Potomac River Basin, stretching from Pennsylvania through West Virginia, Maryland, the District of Columbia, and Virginia, is home to a variety of wildlife and culture. The Potomac flows through the landscape, offering its shores to bathers and fishermen, its rapids to adventurous kayakers, and its natural beauty to all who live nearby. But, over the centuries and specifically since the coming of European settlers to the area 400 years ago, the region and the river have been transformed. Many of the changes that have affected the Potomac were the result of human actions--the introduction of maize about 1,900 years ago, the accidental importation of the Chestnut blight in 1904, and the increased industrialization of the region. In this pictorial history, readers will have the opportunity to learn about the long-lasting effects of deforestation, mining, and pollution, the plant and animal life that call the region home, and the river's restorative power and enduring grace in striking views from the past 200 years.