[2] To provide a transport link for its ore mines, a standard-gauge tertiary railway line was built and operated by the Kleinbahn Gittelde-Grund GmbH, a company to which the state of Prussia, the Province of Hanover, the Prussian district of Zellerfeld and the municipality of Grund had contributed funds.

It had intermediate halts in Windhausen and Laubhütte, and a separate goods station in Bad Grund, west of the terminus.

The main freight on the line was iron ore from Hilfe Gottes mine which was handled from facilities northwest of the passenger station.

[3] The line was first managed by the Cassel regional administrative office of the Prussian state railways, from 1924 by the Lower Saxon State Railway Office in Hannover and from 1 October 1959 until closure by Osthannoversche Eisenbahnen (OHE).

Starting on 19 May 1930, the railway company operated motor buses between Bad Grund and Gittelde and even the next junction station in Seesen.

The locomotive shed in Bad Grund remained in place until 1984 when it was dismantled by railway hobbyists, and rebuilt in Almstedt-Segeste.