When the L& Y submitted plans for this branch in 1865 they envisaged continuing beyond the head of Ryburn Valley, through a long tunnel under Rishworth Moor, to rejoin the existing Calder Valley line near Rochdale so reducing the distance from Sowerby Bridge to Rochdale by five miles.
Difficulties in building the tunnel and landslips delayed opening until 1878 and progress with the extension west of Rishworth never got beyond the planning stage.
This section was opened to passengers on 1 July 1878 and to goods traffic on 5 August 1878.
The line was closed to passenger trains in July 1929 and to goods traffic in 1958.