Everglades Headwaters NWR and Conservation Area Everglades Headwaters NWR and Conservation AreaStation reference point Arbuckle Unit (Special regs)397 acres Hatchineha Unit (Special regs)1,458 acres Kissimmee Bend Unit (Special regs)3,322 acres Okeechobee Unit (Special regs)1,863 acres Closed Unit (Closed)10 acres