historic county, southeastern Scotland, on the North Sea. Berwickshire lies entirely within the Scottish Borders council area. The southern, lowland two-thirds of Berwickshire is called the Merse (March, or borderland) and supports considerable agriculture-especially, since the 18th century, extensive sheep farming. The northern, hilly portion of the county is known as Lammermuir. In the west Berwickshire includes most of the valley of Lauderdale
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