The Solway Plain or Solway Basin is a coastal plain, most of which is in northwest Cumbria in England. (It also extends just over the Scottish border to the low-lying area around Gretna and Annan.) It lies generally north and west of Carlisle along the Solway Firth, and is drained by the rivers Esk and Lyne. It 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 has been designated an “Area of Outstanding Natural Beauty”.