Dry valley
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A dry valley may develop on many kinds of permeable rock, such as limestone, chalk, sand stone and sandy terrains that do not regularly sustain surface water flow. Such valleys do not hold surface wat
A dry valley near Rackham Hill, South Downs, England
Downland
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Downland, chalkland, chalk downs, or just downs are areas of open chalk hills, largely turfed with grass, such as the Chiltern Hills and North Downs.
Devil's Dyke, a dry valley in the South Downs
Beachy Head cliffs and Belle Tout Lighthouse
Galium verum (L.), lady's bedstraw, a typical English chalk downland plant