||In 1803, the New Hampshire Legislature instructed each town in the state to prepare a survey which would be used to create an accurate map of the state. The surveys were done by each community, at their own expense. Most of the original town surveys still survive and are collectively called the "1805 Maps". They are kept at the New Hampshire Archives in Concord and freely available to the public. There are eleven town maps in the collection that exist for Sullivan County, all of which are posted here.
||These road maps were found in a folder in the old Conservation District office in Newport. The source and date of the maps is unknown; however, given that the Grantham map shows the Eastman development and the Washington map lacks the Ashuelot Lake Estates development, they appear to have been made around 1973.