Welcome to Five B Ranch. We are proud to be the only breeder of the American Mastiff in the state of Texas approved by the American Mastiff Breeders Council. We are located in Terrell, Texas – about 50 miles east of Dallas Our breeding dogs have all been raised the same as Benson – pets that are part of our family. All of our dogs enjoy being in the house with us, roaming the property with us, going for car rides with us…. basically just being with us!!