The Great Pyrenees is a giant livestock guardian from the mountains between France and Spain, where big white dogs stayed with flocks and drove off wolves and bears. Adults usually weigh 85 to 120 pounds and wear a thick white double coat, sometimes marked with gray, tan or reddish-brown, along with double dewclaws on the hind legs.
Pyrs are known for calm, gentle devotion to their people, but they were bred to make decisions alone. That makes many of them independent, slow to obey and inclined to roam. In Riverside, that means a secure fence, a leash outside it and patience with training. Heavy shedding comes with the breed, and Pyrs and Pyr mixes turn up often in shelters and rescues, though each dog's personality varies.