The Solway Plain or Solway Basin is a coastal plain in the northwest of Cumbria, England and stretching over the Scottish border to the low-lying area around Gretna and Annan It is an area generally lying north and west of Carlisle along the Solway Firth and drained by the rivers Esk and Lyne. This geographic unit is associated with the westernmost part of Hadrian's Wall. In medieval times clay houses known as dabbins were commonly built on the Solway Plain. The Solway Coast is designated as an Area of Outstanding Natural Beauty.