Pyrenean Mastiff
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| Origin | Spain | ||||||||||||||
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The Pyrenean Mastiff or Mastín del Pirineo is a Spanish breed of large livestock guardian dog from the autonomous community of Aragón in north-eastern Spain.: 552 It was traditionally used to protect flocks during the annual transhumance to high summer pasture in the Pyrenees.: 552 It is a distinct and separate breed from the Spanish Mastiff or Mastin Español and from both the Pyrenean Mountain Dog and the Pyrenean Shepherd.