Crumlin Viaduct, the highest railway viaduct in the UK, had stood for over a 100 years before it was demolished in 1967, a crumbling victim of the Beeching rail cuts. Here its ironwork is seen in colour, in 1959, along with the Stroud brick viaduct and Newport’s Transporter Bridge. There is also footage of the Risca-Tredegar line and the Richard Thomas and Baldwin Trefil Quarry line, that carried the tonnes of limestone needed each day in the RTB iron/steelworks.
The film-maker, Owen Humberstone Prosser (1923-2004), was an acknowledged expert on railways and canals, on which he worked as a restoration volunteer (e.g. the Talyllyn Railway), and on public transport. In later life, he supported Sustrans, a charity established in the 1990s which is devoted to enabling more people to make more journeys on foot or by bike or public transport.