Ivatt 2MT 2-6-0 No 46479 with a PW train on the Dumfries-Stranraer line collecting materials etc on the penultimate day of service, June 11, 1965.
The other photo Bill took of the train was near the Great Water of Fleet viaduct so this may be close to that location.

Photo: W.J. Verden Andrerson/Rail Archive Stephenson