The Lower Delaware National Wild and Scenic River protects 67.3 miles of the Delaware River in Pennsylvania and New Jersey, along with portions of five tributary creeks, as part of the National Wild and Scenic Rivers System. Managed cooperatively by the National Park Service and numerous state, local, and private partners, it preserves free-flowing waterways and guards against significant development. The designation emerged from regional planning in the 1990s, with a management plan completed in 1997 and formal congressional establishment in 2000. Its corridor runs in four segments from near Easton to Washington Crossing, with protected miles classified as scenic or recreational rather than wild.