The Leen Valley Extension started at Kirkby South Junction where it left the Great Central Main Line. It was opened northwards in stages, with passenger services as far as Skegby commencing with some fanfare on 4 April 1898. The line through Pleasley station opened for mineral traffic as far as Shirebrook Colliery on 26 November 1900. Passenger services were extended north of Skegby to Pleasley and Shirebrook (later renamed "Shirebrook South") on 1 November 1901. The high embankment through the village of Shirebrook which completed the Leen Valley Extension by connecting the GNR's Shirebrook (later "Shirebrook South") and the LD&ECR's Langwith Junction (later "Shirebrook North") was opened on 29 May 1901.
