It branched off from the South Australian Railways' Adelaide to Wolseley line at Monarto South running 70 kilometres north to Sedan.

The original stations were at Pallamana, Tepko, Apamurra, Milendella, Sanderston, Kanappa, Cambrai, and Sedan, with station buildings and livestock loading facilities at Appamurra, Cambrai and Sedan.

[1][2][3][4] On 1 June 1964, the line was curtailed to Cambrai, briefly reopening in 1967 to assist in the construction of the Swan Reach to Sedan pipeline.

In 2001, parts of the line between Apamurra and Cambrai were removed by the Pichi Richi Railway Preservation Society for use on its Stirling North to Port Augusta line.

[4][8] The railway line closed in 2005 due to poor track conditions.