The Pyrenean Mountain Dog or Chien de Montagne des Pyrénées is a French breed of livestock guardian dog; in France it is commonly called the Patou. It originates from the eastern or French side of the Pyrenees Mountains that separate France and Spain and is recognised as a separate breed from the Mastín del Pirineo or Pyrenean Mastiff from the Spanish side of the mountains, to which it is closely related.
Pyrenean Mountain Dog at the beginning of the twentieth century
White Pyrenean Mountain Dog
White and badger Pyrenean Mountain Dog
Pyrenean Mountain Dog guarding sheep
A livestock guardian dog (LGD) is a dog type bred for the purpose of protecting livestock from predators.
A Maremma Sheepdog with a flock of sheep in Australia
Relief from a Roman sarcophagus depicting a herdsman and his dog, 2nd or 3rd century CE
A Great Pyrenees with a herd of goats
A "wolf-collar", commonly used as a neck-protection by LGDs against predators