The Appenzeller Sennenhund is a large breed of mountain dog that originated in Switzerland. It is a powerful and athletic breed, with a thick, double coat. Its head is large and round, with small, erect ears. Its legs are strong and muscular, and its tail is usually docked. The Appenzeller Sennenhund is an intelligent and loyal breed, and it makes an excellent family pet. It is an active breed, and it needs plenty of exercise and mental stimulation. It is loyal and affectionate, and it enjoys spending time with its family.