Benton Lake National Wildlife Refuge Benton Lake National Wildlife RefugeStation reference point IVc (Special regs)1,565 acres Pumphouse (Special regs)148 acres V (Special regs)1,597 acres VI (Special regs)1,716 acres Closed (Closed)4,510 acres I (Closed)353 acres II (Closed)564 acres III (Closed)1,150 acres IVa (Closed)370 acres IVb (Closed)368 acres