The Great Pyrenees is, as its name suggest, a very large dog. It ranges in size from around 25-32 inches at the shoulder. In weight it ranges from 85-140 pounds. It is primarily markings of badger, gray, or varying shade of tan and has a long, flat, harsh protective coat.
The Great Pyrenees originated in the Pyrenees mountains of Europe which form the border between France and Spain. They were developed by the Basque people to protect their flocks from predation by bears and wolves. The dogs have been used for this purpose for over a thousand years. Since a lot of the bears and wolves have disappeared from the mountains, the dogs today are still guarding homes and property. Historically, the dogs have also been used in France to guard large estates. The ability of these dogs to work was achieved by selective breeding in which only the most successful workers were allowed to reproduce themselves, and therefore, a great deal of this inbred instinct remains strong. It is upon this thousand-year selection that we draw when we breed modern dogs for working purposes.
The Great Pyrenees is a territorial guard by nature, which means that he works to keep his territory free from predatory danger. Because of this, there may be times when the shepherd does not see the dog for long periods of time. He knows that the job is being done because the losses decrease. If the dog is working effectively, the stockman may never see a predator, and the flock will never be disturbed.
A good working dog has been selected for hostility toward all possible predators. This is why Great Pyrenees, although bred to work on bears and wolves, are equally effective on wild and feral dogs which are an increasing problem to stockman. By nature, the Great Pyrenees is nocturnal. It has no tolerance for other dogs except the herding dogs that it works with, and very small dogs. It can be trusted with small, young and helpless animals of any kind, but it has to be watched as a young pup with some supervision as it usually takes a pup up to 18 months to become a livestock guardian dog. It is one of the most interesting qualities of a Great Pyrenees-the absolute intolerance of all predators, coupled with extraordinary patience and kindness to stock.
There are basically two ways in which Pyrenees are utilized as protectors of stock. The first is what we call an all-purpose "Ranch or Farm Dog." This is a dog that lives on a farm, usually in the proximity of the farmyard and ranch house. He is part pet, part guard dog. He takes care of the ranch, the family, and the stock that is usually pastured close to the house. The other Pyrenees is what we call a "Livestock Guardian Dog." The Livestock Guardian dog is not a pet, and he is not allowed access to the farmyard or to the house. His sole duty is to protect the stock, in some cases on large isolated pastures or ranges. Both types are a working part of the stock operation and function as such. Pyrenees have been known to increase their territory and may also protect stock belonging to adjoining neighbors pastures. The breed performs admirably in either of these situations.