25–27.5 in (64–70 cm) for males, while it is 23–26 in (58–66 cm) for females. Weight is 80–120 lb (35–55 kg) for males, while it is 75–100 lb (35–45 kg) for females. Historically, in some locales at least, the breed was called a Dürrbachhund or Dürrbächler, for a small town (Dürrbach) where the large dogs were especially frequent.The dogs have roots in the Roman Molosser breeds.The breed was used as an all purpose farm dog for guarding property and to drive dairy cattle long distances from the farm to the alpine pastures. By 1910, there were already 107 registered members of the breed. There is a photo of a working Bernese Mountain Dog, dated 1905 at the Fumee Fall rest area in Quinnesec, MI. By 1910, there were already 107 registered members of the breed. There is a photo of a working Bernese Mountain Dog, dated 1905 at the Fumee Fall rest area in Quinnesec, MI.