The map is almost certainly engraved by Samuel John Neele (1758-1824) and his son James Neele (1791-1868). It is on a large scale of one inch to the mile and differentiates between woods and plantations, heaths and commons, different types of waterway and roads. Watermills, windmills and toll booths are identified indicating their significance to the local economy. The two unsuccessful early railway lines are indicated: the Surrey Iron Railway and the Croydon, Merstham & Godstone Iron Railway. These are a phenomenon so unusual as to not be included in the Explanation.
A large vignette of Kew Palace occupies the upper left corner. The early 1800s was a time of rapid change in the landscape with the burgeoning industrial revolution. Their surveys utilised the latest system of triangulation adopted by Colonel Mudge and his surveyors for the Ordnance Survey. Indeed, they were in open competition with them. The Greenwood maps were coloured as opposed to the more functional black and white Ordnance Surveys of the period. Rodger (1972) 445; Tooley’s Dictionary; Worms & Baynton-Williams (2011).