A very unsual 1781 map of northern Vietnam compiled from early Jesuit missionary reports. This unusual maps covers from Canton (Guangzhou, China) in the far northeast southwards as far as Koue-hoe (Hue, Vietnam, ancient capital of Cochinchine), and westwards as far as Tchely (Kunming, Yunna, China). The map includes part of Hainan Island, Ha Long Bay, the South China Sea, and various rivers systems leading into the mountainous interior of modern day Vietnam. Tong-Tou, most likely the modern city of Hanoi, is noted. Numerous cities, villages, and ethnic groups are noted, as are the borders the Kingdom of Tonkin. The map was engraved by Jean Dominique Etienne Canu in Paris, France, for issue in Yves Mathurin Marie Treaudet de Querboeuf's Lettres Edifiantes et Curieuses.