Arun and Western Streams catchment
The catchment covers 1,490 square kilometres (575 square miles, 149,000 hectares or over 368,000 acres). It is dominated by the chalk ridge of the South Downs and the sand and clay of the Weald, and lies predominantly within the new South Downs National Park. (ARRT)
Preferred Units: N/A
Catchment ID: 4
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