Devon East Devon has the first seaside resort to be developed in the county, Exmouth and the more upmarket Georgian town of Sidmouth, headquarters of the East Devon District Council. Exmouth marks the western end of the Jurassic Coast World Heritage Site. Another notable feature is the coastal railway line between Newton Abbot and the Exe Estuary: the red sandstone cliffs and sea views are very dramatic and in the resorts railway line and beaches are very near. North Devon is very rural with few major towns except Barnstaple, Great Torrington, Bideford and Ilfracombe. Devon's Exmoor coast has the highest cliffs
Geology of Dorset around the Dorset and Devon border, although these may have been transported here with the other river deposits. Chesil Bank a long barrier beach stretching from West Bay to Portland, was created 10,000 years ago, when sea levels rose at the end of the last ice age. The Variscan orogeny is the oldest event for which there is evidence in Dorset, forming a major series of thrust faults in Carboniferous and older rocks. These thrusts trend west–east, dip moderately towards the south and have controlled later basin development and subsequent phases of inversion. During the Permo-Triassic the area was affected