Calthorpe Broad

Calthorpe Broad is a 43.5-hectare (107-acre) biological Site of Special Scientific Interest east of Stalham in Norfolk, England.^[1][2] It is a Nature Conservation Review site, Grade I^[3] and a national nature reserve.^[4] It is also part of the Broadland Ramsar site^[5] and Special Protection Area,^[6] and The Broads Special Area of Conservation.^[7]

Calthorpe Broad

Site of Special Scientific Interest
Location	Norfolk
Grid reference	TG 411 259[1]
Interest	Biological
Area	43.5 hectares (107 acres)[1]
Notification	1984[1]
Location map	Magic Map

This broad has diverse fauna and flora. Water plants include mare's-tail, water violet, blunt-leaved pondweed, spiked water-milfoil, floating scirpus, yellow water-lily and the nationally scarce water soldier.^[8]

The site is private land with no public access.