Garden railway

UK garden railway scene in 16 mm scale

A garden railway or garden railroad is a model railway system set up outdoors in a garden. G Scale is the most popular scale for garden railroads, though 16 mm scale also has a following, especially in the United Kingdom. Model locomotives in this scale are often live steam scale models of British narrow gauge prototypes. 16 mm scale (which runs on 32 mm / 1.26 in) track, the same gauge as O gauge is probably now more popular in the UK than G scale.