The Hamasaka - Izumoimaichi (present Izumoshi Station) section came into operation in 1911 by extending, both eastward and westward, the state-operated line that had come into operation in 1909 as the first railway in the Sanin region, and connected Mikuriya Station - Yonago Station - Sakai Station (present Sakaiminato Station).
浜坂～出雲今市（現在の出雲市）間は山陰初の鉄道として1909年に官営で開業した御来屋～米子～境（現在の境港）間を東西に延伸して1911年までに開業した。