Protecting a Critical Waterway
The Delaware River provides clean drinking water for 17 million people in four states.
![](https://natureconservancy-h.assetsadobe.com/is/image/content/dam/tnc/nature/en/photos/2/0/20151020-_GCG2596.jpg?crop=0%2C0%2C2848%2C2848&wid=640&hei=640&scl=4.45)
Arrow Island, Delaware River
Arrow Island, on the Delaware River in Pennsylvania.
©
George C Gress
Program Overview
Restoring the Delaware River
Emerging in New York's Catskill Mountains, the Delaware River's east and west branches form to become one of the only free-flowing major rivers remaining in the eastern U.S.
![Several birds fly over a body of water as the sun sets, creating a yellow glow.](https://natureconservancy-h.assetsadobe.com/is/image/content/dam/tnc/nature/en/photos/delaware_birdsbayside.jpg?crop=342%2C0%2C1364%2C1364&wid=640&hei=640&scl=2.13125)
Program Overview
Delaware Oceans and Coasts
Learn how The Nature Conservancy in Delaware is working with communities along the Delaware coast to create coastal resiliency for people and nature.