Great Dismal Swamp National Wildlife Refuge Great Dismal Swamp National Wildlife RefugeStation reference point Bull Blvd (Special regs)6,688 acres Corapeake (Special regs)7,469 acres Insurance (Special regs)5,185 acres Jericho (Special regs)24,323 acres North (Special regs)4,157 acres Portsmouth (Special regs)22,853 acres Portsmouth Bow (Special regs)3,568 acres Railroad (Special regs)12,223 acres Railroad Bow (Special regs)134 acres Washington Bow (Special regs)7,617 acres Weyerhaeuser (Special regs)8,234 acres Closed Area (NC) (Closed)10 acres Closed Area (VA) (Closed)3,419 acres The Blocks (Closed)8,200 acres