. "Potteric Carr Nature Reserve is a nature reserve at Potteric Carr, south of Doncaster, South Yorkshire, England and managed by the Yorkshire Wildlife Trust as their flagship - and largest - reserve.The reserve was established in 1968, and since then has been developed and extended and now covers 200 hectares (490 acres). It comprises a mixture of habitats from open water and marsh through reed fen, wet woodland (carr land) and scrub."@en . . . . .