One of the most decorative maps of the county: a large Royal crest, eight armorials, a prospect of Launceston, four antiquities and galleons and sea-monsters fill the space around the peninsula. The English text on verso gives a history of the county and an extensive list of towns and villages.

Speed took as his source material John Norden's map of the county. John Norden (1548-1625) had himself planned a county atlas of England and Wales. However, he only managed to survey eight of the fifty-two counties before he ran into financial trouble