Scale approximately 1:8,000. -- "Scale 10 chains to an inch". -- Relief shown pictorially and by hachures. Depth shown by soundings. -- "RoyL. EngRS Drawing Room, Quebec Sqd. J.B. Duberger, June" -- "Reference: The Battery o had all Guns and were made use of on the 27th April, except the one at the marsh. Government Buildings and Blockhouse were burnt by Americans as were many others." -- "Signed G. Nicolls, Quebec 24th June 1816"