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Red Mill Creek Watershed in Delaware

Picture of Red Mill Creek Watershed

             Red Mill Creek Watershed

Watershed Description

Picture of Red Mill Creek Marsh

                  Red Mill Creek Marsh

Red Mill Creek is a small mostly tidal stream that flows through Great Marsh north of the town of Lewes, Delaware.  One impoundment, Red Mill Pond, an impoundment of the stream, is dammed at the head of tide.

Watershed Area:  12,828 acres (5,191 hectares)

Location:  Northeastern Sussex County in southeastern Delaware between the Broadkill River on the north and Lewes-Rehoboth Canal on the south.

Flow Direction:  Northeastern towards Delaware Bay.

Characteristics:  Agricultural and semi-rural watershed on the edge of coastal development. Terrain is flat to gently rolling with marshland in the lower section.

Major Vegetation Communities/Land Covers


Agricultural field ranks first among land covers in Red Mill Creek watershed.  Cultivated lawn is closely behind.  North Atlantic Low Salt Marsh of Great Marsh ranks #3.  Ranking #4 is impervious surface.  Northeastern Coastal Plain Mixed Oak/Heath Forest finishes the list ranking #5.

Red Mill Creek Watershed Vegetation Community/Land Covers (Top 5 for 2007)
Vegetation Community/Land Cover Acres Hectares
Agricultural Field 3,233.00 1,308.00
Cultivated Lawn 2,888.00 1,169.00
North Atlantic Low Salt Marsh 1,960.00 793.00
Impervious Surface 1,358.00 550.00
Northeastern Coastal Plain Mixed Oak/Heath Forest 351.00 142.00

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

Managed Lands


Links of Interest


  • None
Vegetation Community/Land Cover Maps Available


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