Toppenish National Wildlife Refuge Toppenish National Wildlife RefugeStation reference point Chambers (Special regs)76 acres Cloe (Special regs)40 acres Halvorson (Special regs)79 acres Isiri (Special regs)82 acres Petty (Special regs)81 acres Pumphouse (Special regs)253 acres Robbins Rd (Special regs)190 acres Webb (Special regs)81 acres Closed (Closed)1,118 acres