Shows towns, mountains, and rivers in northern Mexico, Louisiana and western Florida. Relief shown pictorially. Meridians: Isle de Fer and Paris. "Liv. VI. et X." in upper left hand corner. "No. 28" in upper right hand corner. Probably issued in Bonne's Atlas de toutes les parties connues du globe terrestre ... [Genève : J.-L. Pellet, 1780] Differs from similar maps in that the map is slightly smaller in height and width, and does not give the names of the cartographer or the engraver.