Not very long ago, in the top left-hand corner of Wales, there was a railway. It wasn't a very long railway or a very important railway, but it was called The Merioneth and Llantisilly Rail Traction Company Limited, and it was all there was. And in a shed, in a siding at the end of the railway, lives the Locomotive of the Merioneth and Llantisilly Rail Traction Company Limited, which was a long name for a little engine so his friends just called him Ivor

A revised version of the 'new' Merioneth layout - features reworked Merioneth Town and Llantisilly

by tkeithmat

Here is a link to the official Ivor the Engine  website