| Country of origin: | France |
| Registries: | AKC, UKC, CKC |
| Occupation: | Livestock guardian |
| Size: | 25 to 32 in tall; 90 to 130 lbs |
| Longevity: | 9 to 11 years |
| Exercise: | Moderate |
| Training: | Needs leadership training |
| Grooming: | Moderate |
| Colors: | White, white with grey, pale yellow, or orange |
The black, orange, or fawn colouring often present on the head of this dog can probably be attributed to crossbreeding between the relatively small number of great white mountain dogs that reached the Pyrenees and indigenous mastiff breeds. In the 1970s, when Pyrenean Mountain Dogs first emerged as family companions, there were problems with over-assertive personalities, but only a few generations of selective breeding produced dogs that are reliable with children and strangers.