The Wild and Scenic Rivers Act is a U.S. law enacted in 1968 to protect certain rivers from development and pollution. It aims to preserve the natural beauty, recreational opportunities, and ecological values of designated rivers. The Act categorizes rivers into three classes: wild, scenic, and recreational, based on their accessibility and development status. Under this Act, rivers designated as "wild" are free of dams and roads, while "scenic" rivers may have some development but are still largely undeveloped. "Recreational" rivers are accessible and may have some development, but they still offer significant natural and recreational value.