What breed is the gray earth dog

Gray earth dogs are strings, and there is no specific breed of dog. A gray earth dog must have one parent with a gray coat, so the offspring have a gray coat. A string dog is a general term for all dogs of mixed breeds or dogs with obscure breed characteristics, not a specific breed that is genetically impure. Active, intelligent, healthy, alert, loyal, all the good qualities that dogs have, string dogs have. Because of the large genetic differences, the general string has a strong resistance to disease. It is a very good dog.