Upper Canada: Plans of Ports in Lake Huron: Penetanguishene, Collingwood, Goderich 
- Bayfield, Henry W., Surveyor
Wise, F. A., Surveyor
Gibbard, Wm., Surveyor
- Media Type
- Item Type
- Georgian Bay
Surveyed by Lieut. Henry W. Bayfield, R. N.
Magnetic Variation in 1863, increasing 4' annually.
Surveyed by Mr. Wm. Gibbard, C.E.
Surveyed by Mr. F. A. Wise
Lighthouse, Lat. 49. 45' 0 N. Long 81. 41'. W. from Greenwich (Approximate)
Magnetic Variation in 1863, decreasing about 4' annually
Soundings in feet
The Long. above given was determined in the U. S. Survey by electric Signals between Goderich & Detroit; but it is necessary to remark that this places the Lt Ho. about 1 3/4' to the W. of its position on the U.S. Chart of Lake Huron & published by the Admiralty.
Engraved under the direction of Capt. G. A. Bedford, R. N.
London Published at the Admiralty, 7th Oct'r 1863. Corrections Feb. 1865.
Sold by J. D. Potter Agent for the Admiralty Charts 31 Poultry & 11 King Street Tower Hill.
Engraved by J. & C. Walker
- Great Britain. Admiralty. Hydrographic Office
- Place of Publication
- London, Eng.
- Date of Original
- pub. 28 July 1828
- Date Of Event
- survey: 1822, 1858, 1861
- Language of Item
- Geographic Coverage
Maritime History of the Great Lakes