COVENS, J. / MORTIER, C. - Carte de la Louisiane et du Cours du Mississipi Dressée sur un grand nombre de Memoires..

Covens & Mortier's issue of Delisle's influential map of the French possession of Louisiana. Updated to include New Orleans.
When originally published in 1718, it was the first detailed map of the Gulf region and the Mississippi, and the first to show the explorations of De Soto, Cavelier, Tonty, Moscoso and Denis. Inset map focused on the outfalls of the Mississippi and the Mobile rivers.
The map is from a Dutch edition of De L'Isle's work entitled, Atlas Nouveau, Contenant Toutes Les Parties Du Monde, Ou sont exactement Remarquées les Empires, Monarchies, Royaumes, Etats, Republiques &c. Par Guillaume de l'Isle. Premier Géographe de sa Majesté.
It was published by Covens and Mortier, brothers-in-law who continued the firm established by Pierre Mortier.