56037 Richard Trevithick just finds a patch of sun, but unfortunately with typical railway photographer's luck, the rest of the picture is in cloud. The location is Hungerford Common, and 56037 is working the 6A18 05:00 Robeston to Theale oil train on 3 September 1984. At this point the railway parallels the Kennett and Avon Canal, which can just be seen above the loco.