The Somerset Levels (or Somerset Levels and Moors as they are less commonly, but more correctly, called) is a sparsely populated wetland area of central Somerset, England, between the Quantock and Mendip hills. They consist of marine clay "levels" along the coast, and the inland (often peat based) "moors". The area borders the Severn Estuary with its very high tidal range which used to cause marine flooding but this is now largely controlled by various sea defences. The Levels are divided into two by the Polden Hills, with the catchment areas of the River Parrett and Axe-Brue on either side. This area excludes the North Somerset Levels behind Weston-super-Mare.
The total area of the levels amounts to approximately 160,000 acres (650 km2). It broadly corresponds to the administrative district of Sedgemoor but also includes the south east of Mendip district. Approximately 70% of the area is grassland and 30% is arable. Discussions are taking place concerning the possibility of obtaining World Heritage Site status for the Somerset Levels and Moors as a "cultural landscape". It has been suggested that if this bid were successful, it could improve flood control, but only if wetland fens were created again.