Sediments in the Bristol Channel Between Wales and Southwestern England, United Kingdom – April 9th, 201051.4N 3.1W
Sediments line the southern and western coasts of the United Kingdom, appearing densest where they flow out of the Bristol Channel, between Wales (above) and southwest England (below). The channel extends from the lower estuary of the River Severn to that part of the North Atlantic Ocean known as the Celtic Sea.
The geography of Wales accounts for less than a tenth of the total area of the UK, covering 20,758 square kilometres (8,010 sq mi). Wales is mostly mountainous, though South Wales is less mountainous than North and mid Wales.