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 parts of Lincolnshire and Cambridgeshire, showing the River Witham at the top of the sheet flowing south-eastwards into Boston and the Wash. Drains across fens and marshland are highlighted in blue towards the lower part of the plan. 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 since it included 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 land. Yeakell, Thomas Jr.