Ballaswein is a small village northeast of Harwick. It is the northernmost settlement on Sodor. On at least two of the Reverend W. Awdry's early maps of Sodor, there is a short narrow gauge line from here to Harwick. This line was not mentioned in The Island of Sodor: Its People, History and Railways, so it is possible that it was an idea Wilbert and his brother George played with but scrapped. However, the narrow gauge line later appeared on the map of Sodor featured in the endpapers of Thomas the Tank Engine: The Complete Collection.