Plan of fort and mission at Kahnawake (previously known as Caughnagawa), south of Montréal on the Saint Lawrence River at Lake St. Louis. Detached from a contemporary manuscript copy of French military engineer Louis Franquet's Voyage du Canada, 1752 (Ayer MS 299 no. 2). This copy lacks all other maps referred to within the text. Text on p. 105-108 refers to letters A-G on map. Cartouche includes notes about incomplete fortification and the residence of the Desauniers family of merchants.