The Duke ran the line from opening on 1 November 1870 until the following year when (with the extension to Helmsdale), the Highland Railway took over the running of the line. When the line was extended to Helmsdale on 9 November 1871, West Helmsdale closed with Loth opening. The Highland Railway absorbed the line into their own network on 31 July 1884. Loth closed on 13 June 1960. Dunrobin Castle having opened with the line, has closed, reopened and closed, with the most recent reopening was in 30 June 1985.