Geography of Dorset is the Blackmore Vale, a relatively low-lying area of clays and limestones of Jurassic age. The south-east of the county forms part of the Hampshire Basin, an asymmetric syncline covered in sands and gravels of Paleogene age. The main rivers in the county are the Stour, Frome and Piddle. The Stour is the county's largest river, although its source is in the neighbouring county of Wiltshire. The Frome and Piddle both lie wholly within the county. The whole of Dorset's coastline is designated part of the Jurassic Coast World Heritage Site, and contains examples of many different coastal landforms, reflecting
History of Devon History of Devon Devon is a county in south west England, bordering Cornwall to the west with Dorset and Somerset to the east. There is evidence of occupation in the county from Stone Age times onward. Its history starts in the Roman period when it was a civitas. It was then a separate kingdom for a number of centuries until it was incorporated into early England. It has remained a largely agriculture based region ever since though tourism is now very important. Devon was one of the first areas of Great Britain settled following the end of the last ice