Facsimile: Portland Canal - Admiralty Survey.

(Facsimile) No. X. N.W. America. British Columbia. Portland Canal from the Admiralty Survey of 1868. (reduced from original scale). Photo. Lith. by A. Hoen & Co. Baltimore, MD.

British Admiralty

1868

1904

(U.S.) Government Printing Office

1:206 000

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