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Cedar Swamp Watershed in Delaware

Cedar Swamp Watershed

               Cedar Swamp Watershed

Watershed Description

Picture of Cedar Swamp Tidal Marsh

              Cedar Swamp Tidal Marsh

Cedar Swamp is located in southeastern New Castle County and is the most undeveloped watershed in Delaware.  A large part of the land is owned by the Delaware Division of Fish and Wildlife as Cedar Swamp Wildlife Area.

Watershed Area:  6,385 acres (2,584 hectares)

Location:  Southeastern New Castle County in north central Delaware between Blackbird Creek on the north and Smyrna River on the south.

Flow Direction:  Most of the watershed is tidal but the flow is generally east towards Delaware Bay.

Characterstics:  Mostly forest and marshland with rest as agricultural field.  This is the most undeveloped watershed in Delaware.

Major Vegetation Communities/Land Covers


This is the least developed watershed in Delaware.  North Atlantic Low Salt Marsh is the largest “natural community” and vegetation community.  Agricultural field is second covering about 1/3 of the watershed.  Reed Tidal Marsh ranks #3 and Estuarine Coastal Mesohaline Water ranks #4.  Mid-Atlantic Mesic Mixed Hardwood Forest rounds out the list at #5.

Cedar Swamp Watershed Vegetation Communities/Land Cover (Top 5 for 2007)
Vegetation Community/Land Cover Acres Hectares
North Atlantic Low Salt Marsh 2,286.00 925.00
Agricultural Field 1,781.00 721.00
Reed Tidal Marsh 828.00 335.00
Estuarine Coastal Mesohaline Water 380.00 154.00
Mid-Atlantic Mesic Mixed Hardwood Forest 207.00 84.00

     *The table above is subject to change with more watershed mapping.

Managed Lands


Links of Interest


Vegetation Community/Land Cover Maps Available


One vegetation community/land cover map based on 2007 aerial imagery is available in .pdf format.  The map that is in the process of completion and is provided “as is” for informational purposes.  Email for shapefile requests.