Printed map. "By Keith Johnston, F.R.S.E." "Engraved & printed W & A.K. Johnston, Edinburgh." In upper margin, "Keith Johnston's General Atlas" and "42". Number "42" also printed on verso in upper right corner. "Natural scale 1:2,065,500 - 32 1/2 miles to an inch" and 3 visual scales. Possibly taken from same original source as McMaster map RMC_107347. Described in Winearls, Mapping Upper Canada 1780-1867, entry 256 (2), p. 80: "In A.K. Johnston, The Royal Atlas of Modern Geography (Edinburgh and London: W. Blackwood & Sons 1861), plate...; also in a later ed of the atlas (Edinburgh and London: W. Blackwood & Sons 1865 [i.e., 1864])..., with the add of more place-names, extension of co boundaries into the Huron-Ottawa area, and a colonization road." Acquired as part of the Hodsoll Collection.