From Stamps of the World
Ellon (Scottish Gaelic: Eilean) is a town in Aberdeenshire, Scotland, north of Aberdeen, lying on the River Ythan, which has one of the few undeveloped river estuaries on the eastern coast of Scotland. It is in the ancient region of Formartine. Its name is believed to derive from the Gaelic term Eilean, an island, on account of the presence of an island in the River Ythan, which offered a convenient fording point.
Places of interest within the town include the ruins of Ellon Castle, surrounded by walls known as the Deer Dyke, and the Auld Brig, a category A listed bridge across the Ythan, built in 1793 and still in use as a pedestrian bridge.