The Greater Swiss Mountain Dog (German: Grosser Schweizer Sennenhund or French: Grand Bouvier Suisse) is a dog breed which was developed in the Swiss Alps. The name Sennenhund refers to people called Senn or Senner, dairymen and herders in the Swiss Alps. The breed is large and heavy-boned with great physical strength, but is still agile enough to perform the all-purpose farm duties it was originally used for. Its breed standard calls for a black, white, and rust colored coat. In 1908 the Swiss mountain dog appeared for the first time in public. Heim wrote in his judge's notes: 'Bello is a marvelous, old Sennen (Butcher) hund of the large, almost extinct breed. Had he been entered under 'other breeds' I would have recognized him as grossen Sennenhund and awarded him first prize with pleasure. Since he was entered among the Durrbachs, I cannot give this interesting dog more than second prize.