Lionel Pincus and Princess Firyal Map Division, The New York Public Library. "The state of New York : with part of the adjacent states" The New York Public Library Digital Collections. 1818. http://digitalcollections.nypl.org/items/510d47dc-3b34-a3d9-e040-e00a18064a99
Lionel Pincus and Princess Firyal Map Division, The New York Public Library. "The state of New York : with part of the adjacent states" New York Public Library Digital Collections. Accessed May 23, 2019. http://digitalcollections.nypl.org/items/510d47dc-3b34-a3d9-e040-e00a18064a99
Lionel Pincus and Princess Firyal Map Division, The New York Public Library. (1818). The state of New York : with part of the adjacent states Retrieved from http://digitalcollections.nypl.org/items/510d47dc-3b34-a3d9-e040-e00a18064a99
<ref name=NYPL>{{cite web | url=http://digitalcollections.nypl.org/items/510d47dc-3b34-a3d9-e040-e00a18064a99 | title=
(cartographic)
The state of New York : with part of the adjacent states, (1818)
}}
|author=Digital Collections, The New York Public Library |accessdate=May 23, 2019 |publisher=The New York Public Library, Astor, Lennox, and Tilden Foundation}}</ref>
![Map of the hydrographical basin of the upper Mississippi River [bottom left].](https://images.nypl.org/index.php?id=ps_map_cd4_47&t=b)
