The Spalding railway line was a railway line on the South Australian Railways network which branched from the Peterborough line at Riverton and passed through the Clare Valley to Spalding. The line opened from Riverton to Clare on 5 July 1918, being extended to Spalding on 9 January 1922. The cessation of railway services was a consequence of the Ash Wednesday bushfires in February 1983, which caused major damage to infrastructure between Sevenhill and Penwortham. The line was formally closed on 17 April 1984.

The Roseworthy–Peterborough railway line was a railway line on the South Australian Railways network. It extended from a junction at Roseworthy on the Morgan railway line through Hamley Bridge, Riverton, initially to Tarlee, then extended in stages to Peterborough.