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DOWNS , the name of a See also:system of See also:chalk hills in the See also:south-See also:east of See also:England. For the See also:etymology of the word and its meaning see DowN. It is most See also:familiar in its application to the two ranges of the See also:North and South Downs. Of these the North Downs are confined chiefly to the counties of See also:Surrey and See also:Kent, and the South to See also:Sussex. Each forms a well-defined See also:long range springing from the chalk See also:area of See also:Dorsetshire and See also:Hampshire, to which, though broken up into a See also:great number of See also:short ranges and See also:groups of hills, the See also:general name of the Western Downs is given. The Downs enclose the See also:rich See also:district of the See also:Weald (q.v.). The North Downs, extending from a point near See also:Farnham to the See also:English Channel between See also:Dover and See also:Folkestone, have a length along the See also:crest See also:line, measured directly, of 95 m. The crest, however, is not continuous, as the hills are breached by a See also:succession. of valleys, forming gaps through which high-roads and See also:railways converge upon See also:London. The See also:rivers flowing through these gaps run northward, and, except in the extreme east, are members of the See also:Thames See also:basin. These breaching valleys, which are characteristic of the South Downs also, " carry us back to a See also:time when the See also:greensand and chalk were continued across, or almost across, the Weald in a great See also:dome." The rivers " then ran down the slopes of the dome, and as the chalk and greensand gradually weathered back . . . deepened and deepened their valleys, and thus were enabled to keep their See also:original course." 1 The western termination of the North Downs is the Hog's Back, a narrow See also:ridge, little more than a See also:quarter of a mile broad at the See also:summit, sloping sharply north and south, and reaching 489 ft. in height. At the See also:west end a depression occurs where the rivers Wey and See also:Blackwater closely approach each other; and it is thought that the Wey has beheaded the Blackwater, which formerly 1 See also:Avebury, The Scenery of England, ch. xi.
first of a See also:series of towns which have grown up at these natural gateways through the hills. The Wey, flowing south of the Hog's Back, breaches the Downs at its eastern extremity, the See also:town of See also:Guildford See also:standing at this point. The next See also:gap is that of the See also:Mole, in which See also:Dorking lies. Between Guildford and Dorking the See also:main line of the Downs reaches a height of 712 ft., but a lateral depression, followed by the railway between these towns, marks off on the south a loftier range of See also:lower greensand, in which See also:Leith See also: The South Downs See also:present similar characteristics on a See also:minor See also:scale. Springing from the main See also:mass of the chalk to the south of See also:Petersfield they have their greatest elevation (889 ft. in Butser Hill) at that point, and extend E. by S. for 65 m. to the English Channel at the cliffs of Beachy See also:Head. As in the See also:case of the North Downs a succession of rivers breach the hills, and a succession of towns See also:mark the gaps. These are, from east to west, the Arun, with the town of See also:Arundel, the Adur, with See also:Shoreham, the See also:Ouse, with See also:Lewes and See also:Newhaven, and the Cuckmere, with no considerable town. The steep slope of the South Downs is north-See also: Additional information and CommentsThere are no comments yet for this article.
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