This map shows the expansion of settlement inland from the coasts in the southern part of the state in the early nineteenth century. In addition to the boundary that most Americans deemed to be authoritative, the mapmakers identified natural features and county lines. Included on the map are Maine's population (according to the federal census of 1830) and its area in square miles. The boundary between Maine and the British colonies remained a matter of contention between the United States and Great Britain until 1842.

The map appeared in an Economical Atlas for the Use of Families and Young Persons, published in Boston by Gray & Bowen in 1831. A handwritten note on the back reads "1836," suggesting that this map may come from a later edition (it may also be an incorrect inscription).