- Mason Neck NWR was established to preserve nesting, feeding, and roosting habitat for the threatened bald eagle. The refuge has over 2000 acres of forest and marshlands with almost six miles of shoreline. The mature forests provide shelter and nesting sites while the area's marshes, bays, and the Potomac River provide opportunities for the easels to hunt for food.
The refuge has one of the largest great blue heron colonies in Virginia. Migratory waterfowl, including mallards, black ducks, wood ducks and green winged teal, inhabit the refuge. Many species of warblers and woodpeckers are common here.
The refuge along with the neighboring Mason Neck State Park, Pohick Bay Regional Park and Gunston Hall cooperate in the management of over 5000 acres of land providing a variety of recreational opportunities while protecting the areas natural resources.
Recreation - Three historic opportunities are within a few miles of Mason Neck National Wildlife Refuge; Gunston Hall, Mount Vernon and Woodlawn Plantation.
Climate - Virginia generally has mild winters and warm humid summers. The tidewater and eastern shore have winter temperatures averaging 34 to 36 degrees Fahrenheit (1 to 2 degrees Celsius). The state's summer temperatures have little variation. The tidewater and eastern shore generally experience temperatures ranging from 76 to above 78 degrees Fahrenheit (26 Celsius). High humidity along with warm temperatures can be uncomfortable.
Mason Neck is approximately 20 miles from Washington, D.C. and 7 miles northeast of Woodbridge.