When you speaks of Langley Mill Railway Station, you normally mean the existing station, near to the church. This was part of the Midland Railway network.
However, Langley Mill also had another station, on the Great Northern line. Until the boundary changes in the 1990's, this had always been in the parish of Eastwood, in Nottinghamshire, but was located near the canal basin, in what was the original Langley Bridge area, and could rightly be classed as Langley Mill. The site is now in Derbyshire. The station was known as Eastwood and Langley Mill Station, and the nearby public house was renamed the Great Northern some time after it had opened in 1875.
The station was closed to passenger traffic on 7 January 1963, but was kept open for coal traffic from Moorgreen Colliery until 1966. Demolition of the station buildings was complete by around 1970. The A610 Eastwood bypass, which opened in 1976, followed the route of much of the railway from Langley Mill to Newthorpe, Derby Road was diverted slightly towards the new roundabout, and much of the old road, including the bridge over the railway, was removed. The extension of the A610 in 1982, bypassing Langley Mill, finished the obliteration of the old railway line.
Information courtesy of http://www.heanorhistory.org.uk/eastwoodandlangleymillstation.htm