The post of Surveyor General of Woods, Forests, Parks and Chases was an office under the English (later the United Kingdom) Crown, charged with the management of Crown lands. The office was at one time divided between surveyors south and north of the river Trent, but in the 18th century, the two posts were combined. In 1810, by the Act 50 Geo III Cap 65, later amended by the Act 10 Geo IV Cap 50, the functions of the post were merged with those of the Surveyor General of the Land Revenues of the Crown and became the responsibility of a new body, the Commissioners of Woods, Forests and Land Revenues.