[Map of the Mississippi River from Willings Creek north to North Branch of Thompsons Creek. Little Bayou Sarah, Big Bayou Sarah, vicinity Bayou Sara, West Feliciana Parish.]

Plate no. 2 from Andrew Ellicott's "The Journal of Andrew Ellicott...for Detrmining the Boundary between the United States and the Possessions of His Catholic Majesty in America." Ellicot's mission was to determine the boundary between the United States and Spanish Florida.