River Otter, Devon River Otter, Devon The River Otter rises in the Blackdown Hills just inside the county of Somerset, England near Otterford, then flows south for some 32 km through East Devon to the English Channel at the western end of Lyme Bay, part of the Jurassic Coast, a UNESCO World Heritage Site. The Permian and Triassic sandstone aquifer in the Otter Valley is one of Devon's largest groundwater sources, supplying drinking water to 200,000 people. The river's source is north of Otterford, where a stream feeds the Otterhead Lakes: and then through Churchstanton before entering Devon. The river flows through a
World Heritage Site Movement" (Argentina, Belgium, France, Germany, India, Japan, Switzerland) is a trans-regional property with component sites located in three regions - Europe and North America, Asia and the Pacific, and Latin America and the Caribbean. It is counted here in Europe and North America. Countries with fifteen or more World Heritage Sites, as of July 2018. Despite the successes of World Heritage listing in promoting conservation, the UNESCO administered project has attracted criticism from some for perceived under-representation of heritage sites outside Europe, disputed decisions on site selection and adverse impact of mass tourism on sites unable to manage rapid growth