De L'ISLE, Guillaume (1675-1726). Carte du Mexique et de la Floride. Engraving. Paris, 1703 or later. 22 1/2” x 29 1/2” sheet. Carl Wheat called the map a â€œtowering landmark along the path of Western cartographic development. It is believed to have the best depiction of the Southwest to date, with early trails & Indian tribes. Cumming described the map as â€œprofoundly influential” (Schwartz / Ehrenberg, 82).