On a ride between Liskeard and Bodmin in September, 2012, the scout stopped to look at the two magnificent viaducts which span side valleys of the River Fowey.
St. Pinnock Viaduct can be viewed from the Trago Mills shopping centre, which started from an old gunpowder works.
The Launceston Branch and Walkham Viaduct on the main pages mentions St. Pinnock.