Physical and Human Features of the South Downs National Park: additional legend ") Hill Fort Landscape Character Type Itchen Valley ") Flint Mine Adur Floodplain Kingsley / Blackmoor Mixed Farmland and Woodland ") Dyke Adur Valley Sides Lavant Valley ") Barrow Adur to Ouse Downs Scarp Meon Valley Contour Adur to Ouse Open Downs Milland Basin Population (2012) by Lower Super Output Area Adur to Ouse Scarp Footslopes Mount Caburn 0 - 1749 Alice Holt Mixed Farmland and Woodland Newton Valence Downland Mosaic 1750 - 4181 Angmering and Clapham Wooded Estate Downland North Rother Valley Sandy Arable Farmland 4182 - 7940 Arun Valley Sides Northchapel Basin 7941 - 14510 Arun and Lower Rother Floodplain Ouse Floodplain 14520 - 33070 Arun to Adur Downs Scarp Ouse Valley Sides Bedrock geology Arun to Adur Open Downs Ouse to Eastbourne Downs Scarp BRACKLESHAM GROUP AND BARTON GROUP (UNDIFFERENTIATED) Arun to Adur Scarp Footslopes Ouse to Eastbourne Open Downs CORALLIAN GROUP Blackdown to Petworth Greensand Hills Ouse to Eastbourne Scarp Footslopes GAULT FORMATION AND UPPER GREENSAND FORMATION (UNDIFFERENTIATED) Bramdean and Cheriton Downland Mosaic Parham Farmland and Heath Mosaic GREAT OOLITE GROUP Brighton to Rottingdean Queen Elizabeth Forest to East Dean Wooded Estate Downland GREY CHALK SUBGROUP Buriton to Arun Scarp Rother Farmland and Heath Mosaic KELLAWAYS FORMATION AND OXFORD CLAY FORMATION (UNDIFFERENTIATED) Cuckmere Floodplain Rother Valley Mixed Farmland and Woodland LAMBETH GROUP Cuckmere Valley Sides Saltdown to Butser Hill Scarp LIAS GROUP East Hampshire Greensand Terrace Seaford to Beachy Head Shoreline LOWER GREENSAND GROUP East Meon to Bury Greensand Terrace Selborne Hangers to East Meon Scarp NEOGENE ROCKS (UNDIFFERENTIATED) East Winchester Open Downs South Downs Upper Coastal Plain PURBECK LIMESTONE GROUP Emms Valley South Winchester Downland Mosaic SOLENT GROUP Froxfield Clay Plateau Stansted to West Dean Wooded Estate Downland THAMES GROUP Goodwood to Arundel Wooded Estate Downland West Walk - Rookesbury Park THANET SAND FORMATION Hambledon to Clanfield Downland Mosaic Woolmer Forest / Weaver's Down WEALDEN GROUP WEST WALTON, AMPTHILL CLAY AND KIMMERIDGE CLAY FORMATION (UNDIFFERENTIATED) WHITE CHALK SUBGROUP © Crown copyright and database rights 2014 Ordnance Survey 100050083 Sources: British Geological Survey; Office for National Statistics; Hamsphire County Council; West Sussex County Council; East Sussex County Council; Brighton and Hove City Council.