It is mostly fen land and includes four Broads which are disused peat workings dug between 900 and 1350:
This area of unreclaimed marshland supports many plants and animals, including rarities such as the crested buckler fern, rare moths and spiders, and some of Britain's rarest aquatic insects.
In open fens, reed[?], sedge[?] and marsh hay[?] are still harvested, mainly for the thatching industry.
wikipedia.org dumped 2003-03-17 with terodump