High Quality Content by WIKIPEDIA articles! The Entlebucher Sennenhund or Entlebucher Mountain Dog is the smallest of the four Sennenhunds, a dog type that includes four regional breeds. The name Sennenhund refers to people called Senn, herders in the Swiss Alps. Entlebuch is a municipality in the canton of Lucerne in Switzerland. The breed is also known in English as the Entelbuch Mountain Dog, Entelbucher Cattle Dog, and similar combinations.