Sleeps Hill was the location of a number of quarries which became the source of ballast stone for the South Australian Railways (SAR). From 1909, a branch line, parallel to the main line and the Clapham branch line, served the Sleeps Hill quarries. The branch became the second main line in 1915, and the quarries were worked by a backshunt from Eden Hills. For a short time, from 1916, Sleeps Hill was the Southern limit of SAR suburban train workings, until the double track passed through the new tunnels to Eden Hills. The station was relocated to the south of the quarry sidings in the 1940s and removed when Lynton station was opened in the mid-1950s.