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
Canadian Rocky Mountain Parks World Heritage Site Canadian Rocky Mountain Parks World Heritage Site The Canadian Rocky Mountain Parks World Heritage Site is located in the Canadian Rockies. It consists of seven contiguous parks including four national parks: and three British Columbia provincial parks: The parks include mountains, glaciers, and hot springs and the headwaters of major North American river systems including: The area is known for its natural environment and biological diversity. It includes the Burgess Shale site, a World Heritage Site in its own right from 1980 to 1984, when it was included in the Canadian Rocky Mountain Parks WHS designation. In 1983 Canada nominated