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
Heritage coast column of the tables below. Designations for nature conservation (as opposed to landscape, e.g. SSSI, Special Area of Conservation and Special Protection Area) of parts of Heritage Coasts are too numerous and complex to easily list here. South Wales, Devon and Cornwall have more heritage coastline per mile than other regions, including over 50% of the coast between Cardiff and St Davids, about 55-60% of Cornwall's coast, and around 60-65% of Devon's coast. This contrasts with the coasts of North West England, where St Bees Head is the only heritage coast, or the south-east stretch of the English Channel which