This area appears to relate closely to the landscape depicted on the 1639 Arlebot map of the 'Level of Hatfield Chase' (reproduced in Miller 1997, fig 3.3) which shows this area following the drainage works of Vermuyden and the other 'Participants'. The Arlebot map appears to show the former river channels crossing the Chase, now dry of water. The levees and gravel beds of these palaeochannels now provide solid sites for much of the isolated farmsteads of the area. Invisible legibility of older hunting park (recorded in previous types as 'wetland common' as boundaries of royal park uncertain).