Dorset rowing, sea kayaking and powerboating. Dorset has a varied landscape featuring broad elevated chalk downs, steep limestone ridges and low-lying clay valleys. Over half the county is designated as an Area of Outstanding Natural Beauty. Three-quarters of its coastline is part of the Jurassic Coast Natural World Heritage Site due to its geological and palaeontologic significance. It features notable landforms such as Lulworth Cove, the Isle of Portland, Chesil Beach and Durdle Door. Agriculture was traditionally the major industry of Dorset but is now in decline and tourism has become increasingly important to the economy. There are no motorways in
History of Dorset Dorset for 200 years after the withdrawal of the Roman legions. The inhospitable coastline prevented an invasion from the sea. When the Roman road across Cranborne Chase was rebuilt in the 6th century the Saxons advanced into Dorset. The Romano-British retreated, constructing another defence, Combs Ditch, which also fell within a century. It is thought that the Saxons captured east Dorset in the mid-7th century and west Dorset shortly afterwards, but the details are not known. Dorset was initially part of Saxon Wessex, with the first record of Dorset being in 841. Coenred, the sub-king of Dorset at the end