150th Anniversary of the Highland Main Line

Signalman Jimmy Summers changes points at Boat of Garten station on the Strathspey Steam Railway on August 27, 2013 in Aviemore, Scotland. This year marks the 150th anniversary of the Highland Main Line built as a transportation link to the South for lairds and landowners living in northern Scotland. (Jeff J. Mitchell/Getty Images)

Henry Leese drives a 1952 British Rail Ivatt number 46512 at Strathspey Steam Railway on August 27, 2013 in Aviemore, Scotland. (Jeff J. Mitchell/Getty Images)

Guard Brian Burgess waves off the 1952 British Rail Ivatt number 46512 at Strathspey Steam Railway on August 27, 2013 in Aviemore, Scotland. (Jeff J. Mitchell/Getty Images)

Fireman Ken Plant and driver Henry Leese look from the plate of a 1952 British Rail Ivatt number 46512 at Strathspey Steam Railway on August 27, 2013 in Aviemore, Scotland. (Jeff J. Mitchell/Getty Images)

Fireman Ken Plant looks from the plate of a 1952 British Rail Ivatt number 46512 at Strathspey Steam Railway on August 27, 2013 in Aviemore, Scotland. (Jeff J. Mitchell/Getty Images)

Lionel Smith collects tickets on the 1952 British Rail Ivatt number 46512 at Strathspey Steam Railway on August 27, 2013 in Aviemore, Scotland. (Jeff J. Mitchell/Getty Images)

Fireman Ken Plant stokes the boiler on the 1952 British Rail Ivatt number 46512 at Strathspey Steam Railway on August 27, 2013 in Aviemore, Scotland. (Jeff J. Mitchell/Getty Images)