The Yorkshire Dales are an area of Northern England comprising river valleys and the hills rising from the Vale of York westwards to the hilltops of the Pennine watershed.
East Sussex is part of the historic county of Sussex, which has its roots in the ancient kingdom of the South Saxons.
The chalk uplands of the South Downs occupies the coastal strip between Brighton and Eastbourne. There are two river gaps: the Rivers Ouse and Cuckmere. The Seven Sisters, where the Downs meet the sea, are the remnants of dry valleys cut into the chalk; they end at Beachy Head, 530 feet (162 m) above sea level.