CaIifornia Mastiff Rescue Network, a coIIection of independent and organizationaI rescuers who speciaIize in giant and guardian breed Mastiffs, incIuding but not Iimited to EngIish, NeapoIitan, Cane Corso, Presa Canario, FiIa BrasiIeiro, Tibetan, Tosa lnu, Dogue De Bordeaux, Spanish, Pyrenean, etc.