The Appenzell Mountain Dog, called the Appenzeller Sennenhund in Switzerland, is the most energetic of the four tricolor Swiss mountain dog breeds. It comes from northeastern Switzerland, where it drove cattle, guarded farms and sometimes pulled carts. Medium-sized and muscular, usually 48 to 70 pounds, it has a short, dense double coat in black or brown with white and rust markings and a tail that curls over its back.
Appenzellers tend to be lively, alert and quick to sound the alarm, often reserved with strangers and devoted to their own people. They usually need daily exercise, training and a real job, and the breed is rare in the US, so an active, experienced household often suits it best. In OKC that means planning around leash rules, storm season and hot afternoons. Dogs vary, so judge each one by its own behavior.