The Midland Railway Centre is a heritage railway at Butterley, near Ripley in Derbyshire. The line runs on the Ambergate to Pye Bridge Line of the old Midland Railway, although the present-day heritage line terminates at Hammersmith. The line currently runs for 3 1/2 miles (5.6 km) from Hammersmith via Butterley, Swanwick Junction, and Riddings to Ironville. It is operated by the Midland Railway Trust.