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. It was traditionally used to protect flocks during the annual transhumance to high summer pasture in the Pyrenees. 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.
Developed in the mountainous regions of Aragón in north-eastern Spain, primarily for guarding livestock in the Pyrenees.
The Pyrenean Mastiff is known for its gentle and calm demeanor, making it an excellent family companion. Despite its large size, it is very docile and protective of its home and family. The breed requires a large space to move around and does best in rural or suburban settings.
A Spanish carlanca or wolf collar


Trainability
Responsiveness to training: —/5