Description of a Spanish Mastiff.

The Spanish Mastiff is a large breed of dog, originating in Spain, originally bred to be a sheep dog and a guard dog whose purpose is to defend livestock from wolves and other predators.

The Spanish Mastiff is a very large and powerful dog, similar in appearance to the other Mastiff breeds. They have a large powerful head, with loose folds of skin and a double dewlap on the neck.

Males in this breed are at least 77 cm (30 in) tall at the withers, and range from 50–65 kg (110-140 lbs). Females are at least 72 cm (28 in), and weigh 50–60 kg (110-130 lbs).

This dog has a long muzzle compared to many other mastiffs. It has small eyes and drop ears resembling triangles. This dog's coat is most often reddish or fawn-colored, but can also be brindle, black or 'wolf' colored.