The Llantaliog Valley Railway is a series of linked dioramas, the three base-boards depicting a station and a street scene, open farmland, and a slate quarry.

Llantaliog Valley is a fictional Welsh narrow gauge line, originally built as a  horse tramway in 1843 to serve the local slate industry.  It was converted to locomotive haulage in 1874 and began passenger services a year later.  

Always impoverished, its locomotives and rolling stock have been acquired second-hand from various sources, both home and overseas.  

The trackwork is Peco, the buildings are a mixture of kit and scratch built, as are the locomotives and rolling stock.