[10] In 1997, on the basis of local hearsay, he investigated the Loch nan Uamh Viaduct by the same method but found the piers to be full of rubble.

[9][10] Using scanning technology in 2001, the remains of the horse and cart were found at Loch nan Uamh, within the large central pylon.

[14] It is the longest concrete railway bridge in Scotland at 416 yards (380 m), and crosses the River Finnan at a height of 100 feet (30 m).

[14][8][15] The West Highland Line it carries is single track, and the viaduct is 18 feet (5.5 m) wide between the parapets.

[17] It is formed by pouring concrete, typically using fine aggregate, into formwork, resulting in a material very strong in compression but weak in tension.

It is also featured in a number of Films/TV series including Ring of Bright Water, Charlotte Gray, Monarch of the Glen, Stone of Destiny, The Crown.

After its appearance in Harry Potter, British Transport Police had to warn fans not to walk on the viaduct after a handful of near misses with trains had occurred.