Hutchins accompanied expeditions to the Mississippi at the time of Pittman’s own travels into the Illinois Country as a young officer and produced his own accounts of these journeys with excellent maps which are among the earliest—if not the earliest—printed maps with St. Louis clearly identified in a location long known to some explorers, obscured or overlooked by others for one hundred years of mapping New France. Many of these descriptive narratives borrow heavily from Pittman, but his maps are crucial for the period he describes. Much later, Hutchins was an important surveyor for the territories of the young United States, rising to the post of Geographer to the United States, the first and only citizen ever to hold such a position., Map from "A Topographical Description of Virginia, Pennsylvania, Maryland and North Carolina..." also by Hutchins. French title: "Description topographique de la Virginie, de la Pensylvanie, du Maryland et de la Caroline Septentrionale : contenant les rivières d'Ohio, Kenhawa, Sioto, Cherokée, Wabash, des Illinois, du Mississippi..." Published in Paris: Le Rouge, 1781.