- Map I The Junction of the Ohio and Mississippi, in The Navigator: Containing Directions for Navigating the Monongahela, Allegheny, Ohio and Mississippi Rivers with an Ample Account of these Much Admired Waters. Zadok Cramer. Pittsburgh: 1808
- curated label:
- The Navigator was first in a long series of guides to the western rivers. Manuscript notations on several maps indicate this copy was used for trips down the river.