A map of Lake Ontario by Labroguerie (1757) is noted in the Catal. of the King’s Maps (Brit. Mus.), ii. 112.
General Amherst caused sectional maps to be made by Captain Holland and others, which are noted in the Catal. of the King’s Maps (Brit. Mus.), i. 608.
Subsequent to the conquest of 1760, General Murray directed Montresor to make a map of the St. Lawrence from Montreal to St. Barnaby Island. This is preserved. (Trans. Lit. and Hist. Soc. of Quebec, 1872-73, p. 99.)
Maps in Bellin’s Petit Atlas Maritime, 1764 (nos. 4 to 8).
Jefferys’ map of the river from Quebec down, added to a section above Quebec, based on D’Anville’s map of 1755, is in Jefferys’ Gen. Topog. of North America, etc., 1768, nos. 16, 17.
The edition of 1775 is called An exact Chart of the River St. Lawrence from Fort Frontenac to Anticosti (and Part of the Western Coast of the Gulf of St. Lawrence), showing the Soundings, Rocks, and Shoals, with all necessary Instructions for navigating the River, with Views of the Land, etc., by T. Jefferys. It measures 24 × 37 inches, and has particular Charts of the Seven Islands; St. Nicholas, or English Harbor; the Road of Tadoussac; Traverse, or Passage from Cape Torment.
A map engraved by T. Kitchen, in Mante’s Hist. of the Late War, London, 1772, p. 30, shows the river from Lake Ontario to its mouth, defining on the lake the positions of Forts Niagara, Oswego, and Frontenac; and (p. 333) is one giving the course of the river below Montreal.
In the Atlantic Neptune of Des Barres, 1781, Part ii. no. 1, is the St. Lawrence in three sheets, from Quebec to the gulf; Part ii., no. 16, has the same extent, on a larger scale, in four sheets; Part ii., Additional Charts, no. 8, gives the river from the Chaudière to Lake St. Francis, in six sheets, as surveyed by Samuel Holland.
Moll made a survey of the Gulf of St. Lawrence in 1729. The most elaborate map is that of Jefferys (1775), which measures 20 × 24 inches, and is called Chart of the Gulf of St. Lawrence, composed from a great number of Actual Surveys and other Materials, regulated and connected by Astronomical Observations.
There is a chart of Chaleur Bay in the North American Pilot (1760), nos. 14, 15; and of the Saguenay River, by N. Bellin, in Charlevoix, iii. 64.