The Maritime History of the Great Lakes
Lake Ontario, 1912

War Department, Corps of Engineers, Cartographer
Media Type:
Item Type:
US Hydrographic chart of Lake Ontario
"War Department, Corps of Engineers,
Survey of the Northern and Northwestern Lakes
made in obedience to acts of Congress
and orders from
Headquarters Corps of Engineers, War Department.
Lake Ontario
Projected from a trigonometrical Survey executed under the direction of
Major C. B. Comstock, Corps of Engineers, Bvt. Brig. Gen., U.S.A. in 1873-75.
Additions and corrections under the direction of
Major W. L. Fisk, Corps of Engineers, U.S. Army in 1901 & 1903,
Colonel G. J. Lydecker, Corps of Engineers, U.S. Army in 1906-1907 and
Major Charles Keller, Corps of Engineers, U.S. Army, in 1909,
Lieut. Col. C. S. Riché, Corps of Engineers, U.S. Army, in 1911-1912.
Scale 1/400000."
"Price 15 cents"

Off-shore Hydrography by Capt. H. M. Adams, 1st Lieut. C. F. Powell, and 2nd Lieut. T. N. Bailey.
Topography and in-shore Hydrography by Asst. Engrs. J. R. Mayer, A. C. Lamson, F. M. Towar. J. Eisenmann and F. Terry.
Triangulation by Asst. Engrs. G. Y Wisner, T. Russell, R. S. Woodward, J. H. Darling and W. A. Metcalf.
Astronomical Observations by 1st Lieut. E. H. Ruffner and Asst Engrs. O. B. Wheeler and G. Y. Wisner.
South Charity and East Charity Shoals by Capt. G. D. Fitch, Corps of Engrs. in August 1900.
Resurvey of Niagara River, including Niagara Bar under the direction of Colonel G. J. Lydecker, Corps of Engineers, U.S. Army, and under the supervision of F. C. Shenehon, Principal Assistant Engineer, by Andrew J. Swift. Junior Engineer, in 1906.
The remainder of the Canadian coast to the vicinity of Kingston is reduced from Takabury's Map of Canada West, 1862, and from Chart of Lake Ontario by Capt. Owen, R. N. 1869. The soundings taken therefrom are given in italics. The Topography of the United States side extending further than about 1 mile from shore is copied from the U.S. Geological Survey, State and County maps and other reliable sources.
Reduction by J. U. Mueller. Revision by A. Mangelsdor under the supervision of Edward Molitor, Assistant Engineer."
Corps of Engineers, War Department
Date of Original:
Issued March 26, 1912
Map Scale:
Language of Item:
Geographic Coverage:
  • Ontario, Canada
    Latitude: 43.795555 Longitude: -77.905555
Copyright Statement:
Copyright status unknown. Responsibility for determining the copyright status and any use rests exclusively with the user.
Maritime History of the Great Lakes
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Lake Ontario, 1912

US Hydrographic chart of Lake Ontario