Most of the landscape that belongs to Somerset falls into many types such as limestone karst and lias in the north, the oolites in the east and south, the Devonian sandstone in the west and the clay vales and wetlands in the centre. In the north eastern side of the Somerset county, the Mendip Hills are a little elevated limestone hills and their central and western parts indicate as areas of fantastic Natural Beauty in 76 sq miles or 197 sq km. Mostly these hills have a chalky grassland that is fertile for agriculture. On the southern sides there are wide valleys that are good for dairy farming and fall into the Somerset Levels. The county has many rivers, caves and gorges. The flat levels and moors of mid and west Somerset are fed and drained by these rivers.
The Somerset Levels are a thinly populated wetland area of central Somerset, which is spread in about 160000 acres. About 70% of the area is grassland and the remaining 30% can be cultivated. This area is under sea level and drainage was done during every era. During World War a Huntspill River was constructed to pump and drain water. In the northern side the area, it becomes a coastal region around Avonmouth. It is also a low lying area the Caldicot and Wentloog Levels. In the far west of the county is a sandstone moor, initiated as a national park in 1954, under the 1949 National Parks and Access to the Countryside Act. The top most point in Somerset is Dunkery Beacon, which has an altitude of 1,704 ft or 519 m. Sites of Special Scientific Interest are 100 in Somerset.
The north side border of Somerset has the 40 miles or 64 km of coastline that exists in Bristol Channel and Severn Estuary. The Bristol Channel has the second largest variety of waves on Earth. The coastline region that falls between Minehead and the eastern extreme of the county’s coastline is at Brean Down, also called as Bridgwater Bay and is recognized as a National Nature Reserve. In the north and middle of the county, the coastline is still low as its levels meet the sea. Dramatically, in the west, the coastline gets high and the place where the plateau of Exmoor connects the sea, with many waterfalls and high cliffs.
The Dunster Yarn Market was built in 1609 for the trading of local cloth and Somerset has recently had just a few industries, but not high technology businesses and a variety of light industry although it has conventional agriculture and a flourishing and significant tourism sector. Bridgwater got refurbished during the Industrial Revolution as a leading port of the West Country. The River Parrett was accessible to large ships and vessels. At present the Parrett is only navigable up to Dunball Wharf.