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.
1 : 31680 This drawing covers the fens of Cambridgeshire, Huntingdonshire, Lincolnshire and Northamptonshire with the county borders indicated by a red dotted line. Characteristic fenland features such as dykes, canals and ancient cattle droves are clearly depicted on the plan. In the 17th century, the Dutch engineer Cornelius Vermuyden was appointed by James I to direct the drainage of the wetlands. As a result of Vermuyden's work, the fens took on a very different appearance, changing from an area of flooded marshes to one of extensively farmed agricultural land. Yeakell, T.