Scale not given.
Boston Public Library
Norman B. Leventhal Map Center Collection
New England--Maps--Early works to 1800,Boston (Mass.)--Maps--Early works to 1800
North and Central America (continent), United States (country), Iowa (state)
1 map ; 22 x 24 cm.
No known copyright restrictions.
Appears in The Gentleman's Magazine. London, August 1775.,Relief shown pictorially.