Delaware has 2 designated Wild and Scenic River entries protecting 125.8 miles across 20 segments, all administered by the National Park Service — a substantial protected mileage for one of the smallest states in the country. Both entries are part of the White Clay Creek system, a cross-border watershed shared with Pennsylvania that drains the Piedmont hills of northern Delaware and southeastern Chester County before flowing into the Christina River near Wilmington. Click any segment on the map below for classification, mileage, and agency details.

Wild and Scenic Rivers in Delaware at a Glance

Delaware’s entire Wild and Scenic presence rests on the White Clay Creek, a Piedmont stream that rises in Pennsylvania’s Chester County, crosses into northern Delaware, and flows through the greater Wilmington area before joining the Christina River. The White Clay Creek was designated as a cross-border Wild and Scenic river, and its Delaware reach is one of the longer WSR designations in the mid-Atlantic region despite being entirely within a single small watershed. The creek and its tributaries drain a landscape that includes dairy farms, woodlots, and the heavily developed suburbs north of Wilmington — a reminder that Wild and Scenic status in the East is often about protecting a river’s remaining quality rather than preserving pristine wilderness.

Classification Breakdown

Delaware has no Wild-classified segments, reflecting the developed character of the White Clay Creek corridor and its location within one of the most densely settled parts of the Mid-Atlantic. Scenic segments protect the creek’s most ecologically intact reaches — stretches passing through White Clay Creek State Park and adjacent protected lands in New Castle County — while Recreational segments cover the more accessible portions that run near roads, farms, and suburban development.

Managing Agencies

The NPS manages the White Clay Creek designation through its partnership river program, working with the Delaware Department of Natural Resources and Environmental Control, the White Clay Creek Preservation Council, New Castle County Parks, and the Pennsylvania counterpart organizations that manage the cross-border designation on the upstream side.

The Designated River System

The data shows the White Clay Creek designation split across two entries — the main 122.7-mile system and a separate 3.1-mile tributary segment — which together cover the full extent of the creek and its protected tributaries in Delaware. The White Clay is the most ecologically significant cold-water stream in the state, supporting one of the only self-sustaining wild trout populations in Delaware in its upper reaches. Cultural values are central to the designation as well: the creek corridor passes near Brandywine Creek State Park and contains numerous historic mill sites from the eighteenth and nineteenth centuries.

Visiting the Designated Reaches

White Clay Creek State Park in northern Delaware provides the main public access corridor to the designated river, with a well-developed trail network that follows both banks through forested Piedmont terrain. The trail system connects to the White Clay Creek Preserve on the Pennsylvania side for longer multiday hiking options. The creek offers excellent stream fishing for wild brown trout in the upper reaches near Newark and Pike Creek, and the park maintains stocked sections for bait anglers below the regulated stretches. Birdwatching along the creek is productive in spring migration, when the floodplain forest and streamside shrubs attract warblers, vireos, and thrushes in numbers surprising for such a developed landscape. Cyclists can access the paved Jack A. Markell Trail near Wilmington for a riverside ride that transitions from urban to wooded corridor as it heads upstream through the designated reach.

Maps for Neighboring States

The White Clay Creek is a cross-border designation that continues into Pennsylvania — see our Pennsylvania Wild and Scenic Rivers map for the full upstream extent of that system. New Jersey to the northeast has four designated rivers including the Great Egg Harbor, Maurice, Musconetcong, and a reach of the Delaware. Maryland, which borders Delaware to the south and west, has no federally designated Wild and Scenic rivers. For the full national picture, visit our US Wild and Scenic Rivers map.

Data Sources

River segment geometry, classification, mileage, and managing-agency attributes come from the US Forest Service Enterprise Data Warehouse, specifically the National Wild and Scenic River Segments dataset jointly maintained by the USFS, NPS, BLM, and US Fish and Wildlife Service. Source service: USFS EDW Wild Scenic River Segments. Authoritative national index: rivers.gov. State recreation and fish-management context: Delaware Department of Natural Resources and Environmental Control, White Clay Creek State Park, and the White Clay Creek Preservation Council.