A weald once meant a dense forest, especially the famous great wood once stretching far beyond the ancient counties of Sussex and Kent, England, where this country of smaller woods is still called "the Weald". Now that most English forests have been cut down, the word may refer to open countryside or to the special clays found in the Weald. Weald descends via Anglo-Saxon weald = "forest" from an ancient Indo-European root meaning "forest" or "wild". It is closely related to the German Wald and Old Norse völlr, both of which descend from the same Indo-European root; both German and Old Norse are sister languages of English.
The High Weald of higher hills, ridges and valleys is the central part of the Wealden anticline, layered Lower Cretaceous rock that later rose up and folded upward into an arched incline, as well as steep slopes falling away in certain parts of the area. It covers an area of 500 mile² (1,300 km²) and has been designated an Area of Outstanding Natural Beauty.
Lower parts of the Weald form a gentler rolling countryside which is especially popular with ramblers. The Weald has maintained its wooded character, with forest still covering 23% of the area, one of the highest levels in England. Despite the population pressure in the South of England, it has not resulted in any major urban environment. Small towns such as Tunbridge Wells, Tonbridge, Crawley, Sevenoaks, etc., are local centres which have attracted a certain number of commuters into London without having lost their traditional character.
The area was the centre of the Wealden iron industry from Roman times until the last forge was closed in 1820. The use of its timber for the furnaces, but also for the medieval cloth industry and by the shipbuilders on the Thames and Medway, might well have denuded its landscape, but now that all three industries use other raw materials, the Weald remains one of the most heavily wooded areas of England. It is also one of the most important regions whence many English yeomen came to settle the lands across the sea which have since become the United States.
The geological anticline which caused the Weald extends 62.5 km = 37.5 miles further south-south-east under the Straits of Dover and includes the Boulonnais in France. See Straits of Dover.
Areas of Outstanding Natural Beauty in England | Geography of England | Hills of East Sussex