Galu wa Phiri la Pyrenees - yemwe amadziwikanso ndi mayina a Chien de Montagne des Pyrénées kapena Patou - ndi galu wamphamvu kwambiri. Ngakhale kuti ndi wamkulu kwambiri, galu wogwira ntchito ameneyu, yemwe ndi mmodzi mwa agalu osamalira ziweto, ndi wachikondi kwambiri, wodekha, wokondweretsa, komanso wochezeka ndi bwenzi la miyendo inayi.
Kumbali ya ku Spain ya Pyrenees kumakhala Pyrenean Mastiff, Mastín del Pirineo, yomwe imasiyana pang'ono ndi Galu wa Phiri la Pyrenees la ku France.