Collection search - Quebec. Plan shewing part of the cliffs and defences from surveys made in 1846-8 and from other sources by Chas. Walkem, Surveyor & Draftsman, R.E. Department. To accompany Mr. Walkem's report to the Commanding Royal Engineer dated Montreal Hd Qrs 16 Novr 1848 signed Chas. Walkem Survr & Draftn, 17th Novr 1848. Copy T.A.L. Murray, Lieut Royl Engr 2nd March 1849. [cartographic material]

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