Head, Clara and Maria Local History
Plan of the township of Clara, Renfrew County ca. 1888
Description
Creators
Sinclair, P.L.S. Road Lots in 1863, Cartographer
J.W. Fitzgerald P.L.S. Residue Township in 1885
, Cartographer
Media Type
Image
Text
Item Type
Maps
Description
An early surveyors map for Clara Township, Renfrew County. The map was issued in 1888 by the Department of Crown Lands.
Notes
The Map came from Andre Boissonneault, a contractor. The map is hand written on an oil cloth, and covers a total area of 63922 (unit of measure unknown).


Early surveyors, like William E. Logan, used Rochon micrometer telescopes and targets (disk on a calibrated pole) to measure distance. Each microscope had a different calibration and therefore a different range. The instruments were calibrated against a distance measured with a surveyors chain (also known as Gunter’s chain). One chain had 100 links and was 66 feet (about 20 meters) or 22 yards long.

Sources
William E. Logan (2007). 1845 Survey of the Upper Ottawa Valley. Mercury Series History Paper 54. Charles H. Smith and Ian Dyck (eds.). Gatineau, Quebec: Canadian Museum of Civilization Corporation.

surveyor’s chain. (2010). In Encyclopædia Britannica. Retrieved April 14, 2010, from Encyclopædia Britannica Online: http://www.britannica.com/EBchecked/topic/575448/surveyors-chain
Publisher
Department of Crown Lands
Date of Original
July 1, 1888
Dimensions
Width: 56 cm
Height: 80 cm
Map Scale:
40 chains to an inch
Subject(s)
Collection
Boissonneault Collection
Language of Item
English
Geographic Coverage
  • Ontario, Canada
    Latitude: 46.20012 Longitude: -78.31624
Donor
Andy Boissonneault
Contact
Head, Clara and Maria Public Library
Email
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Plan of the township of Clara, Renfrew County ca. 1888


An early surveyors map for Clara Township, Renfrew County. The map was issued in 1888 by the Department of Crown Lands.