The Appenzell Mountain Dog, called the Appenzeller Sennenhund in Switzerland, is the most energetic of the four tricolor Swiss mountain breeds. It comes from the Appenzell region in the northeast of the country, where it drove cattle, guarded farms and sometimes pulled carts. Medium-sized and muscular at roughly 48 to 70 pounds, it has a short, dense double coat in black or brown with white and rust markings, and a tail curled over its back.
Appenzellers tend to be lively, alert and quick to bark, often reserved with strangers and devoted to their own people. Bred for long working days, they usually need steady exercise, training and a real job to stay content. The double coat sheds seasonally. Dogs vary, so a particular dog's behavior matters more than the breed label.