This drawing covers the part of Lincolnshire known as South Holland. It shows the saltmarshes, intertidal banks of sand and mud, shallow waters and deep channels that characterise the Wash, the largest estuarine system in Britain. Depicted further inland, to the left of the sheet, are ancient cattle droves, the long straight roads that are a prominent feature of this part of Lincolnshire. Budgen, Charles
1 : 31680 This drawing covers part of Lincolnshire, showing drains across the fens highlighted in blue. These date from the 17th century, when James I appointed Dutch engineer Cornelius Vermuyden to direct the drainage of the wetlands. Many local people opposed the scheme as the plan involved commonland on which they grazed cattle. As a result of Vermuyden's work, the fens changed radically in appearance, from an area of flooded marshes to one of extensively farmed agricultural land. In the middle of the sheet is a series of decoy ponds, built in the 17th and 18th centuries to lure wildlife. Yeakell, Thomas Jr.