The Tibetan Mastiff is a majestic and imposing dog breed known for its strength, loyalty, and protective instincts. These dogs typically weigh between 70 to 150 pounds or more and stand around 24 to 26 inches tall at the shoulder. Tibetan Mastiffs have a large and muscular build, with a dense double coat that is thick and weather-resistant. They come in various colors, including black, blue-gray, brown, and red, often with darker markings. They have a solemn and watchful expression, with deep-set, almond-shaped eyes and pendant ears.