HUNDREDS of people lined bridges and the track side to catch a glimpse of one of six last remaining Pacific A4 steam locomotives left in the world.
Union of South Africa, sister engine to the record breaking Mallard, is pictured cutting through the Upper Eden Valley in Cumbria this weekend.
Built in Doncaster in 1937 by locomotive designer, Sir Nigel Gresley, for the London North East Railway, the sleek streamlined loco, in its British Railways Brunswick green livery, took passengers on one of the world's most scenic railway lines - the 73 mile long Settle to Carlisle line.
Almost 120,000 people flocked to The National Railway Museum at Shildon in February to The Great Goodbye exhibition which featured Union of South Africa, Mallard and their other four remaining A4 class sister engines.
It marked the 75th anniversary of Mallard reaching 125.88mph on July 3, 1938, to become the world's fastest steam engine.
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