Figure 3.1: A reconstruction of the main medieval sea-bank at Clenchwarton, Norfolk. Based on excavation of the remains of the bank, it shows the salt-marsh scarp chosen as the line of the bank, and the progressive upward use of muds to form the bank. The new land was gradually altered by filling in former pools and converting the creeks to ditches.

Source: P. Murphy, 'Environmental archaeology: second progress report', Fenland Research no 8, 1993, 35-39, Fig 1 at p 37.