drawn & published by David H. Burr. 1 map : col. ; 33 x 25 cm. Scale ca. 1:1,600,000 (W 71⁰40ʹ--W 66⁰20ʹ/N 47⁰35ʹ--N 43⁰10ʹ). Prime meridians: Greenwich and Washington. Relief shown by hachures. Hand colored. Entered according to act of Congress, in the year 1831, by David H. Burr, in the clerk's office of the District court of the southern district of New-York.