When I transitioned early in my law career from a downtown urban firm to a main street rural sole proprietorship, it wasn’t long before I confronted the grid maps of the townships in the County of Lanark. These and survey matters in general frequently initiated any title searching. The preliminary education was understanding the difference between the fifth line and the fifth concession (the latter being the grid definitions of the townships in the county).
From there one was introduced to the convenience of the side road between every fifth lot (subdivisions within the concessions grids). These side roads were often legitimized at the quarterly meetings of the township council; and, hence, the roads came to be known as a Quarter Session road.
Lots:
Townships were further subdivided into lots within each concession. Lot sizes and survey methods evolved over time. Early System (from 1780s): Lots were commonly 200 acres, measuring 20 chains by 100 chains (1 chain = 66 feet or 20.1 meters).
The average size of a county in the province of Ontario is approximately
3,190 square kilometers (1,230 square miles)
Ontario has 22 counties (including united counties), which are primarily located in Southern Ontario and vary significantly in size. The smallest county is Dufferin County, with an area of 1,486.77 km², while the largest is Renfrew County, which covers 7,357.94 km².
It is important to note that a significant portion of Ontario, particularly Northern Ontario, is organized into much larger districts or single-tier municipalities, not counties. These other divisions have very different geographic and demographic characteristics.
By way of acknowledgement of our western neighbours (Alberta, Saskatchewan and Manitoba), I confess I first heard of these matters when I was only 13 years old living in Alberta. I met Kenneth Stickland whose family owned a nearby farm. Never did I hear Stickland or his family refer to acres; rather to sections.
Sections:
A section is 640 acres because it is defined as a square mile under the Public Land Survey System. There are 640 acres in one square mile. This is a result of the historical measurement system, where a square mile is 5,280 feet by 5,280 feet, and an acre is defined as 43,560 square feet, which divides evenly into the area of a square mile (5,280×5,280÷43,560 = 640).
The square mile was a logical unit because it could be easily divided into quarter sections of acres (640/4 =160 acres so named a Quarter Section), and then further into acre parcels.
The use of the chain as a standard measurement in Ontario is a legacy of British colonial history, specifically the adoption of Gunter’s chain as the statutory measure for land surveying throughout the British Empire.
Here is how it became standard:
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- Invention and Standardization: In 1620, the English clergyman and mathematician Edmund Gunter developed a precise measuring device called the “Gunter’s chain”. This chain was exactly 66 feet (20.117 meters) long and divided into 100 links. This system was ingenious because it reconciled traditional English land measurements with decimal calculations:
- 10 square chains equaled one acre.
- 80 chains equaled one mile.
This made calculating land areas much simpler for surveyors and was adopted as the official standard in England and its colonies.
- Establishment in Upper Canada (Ontario): When a formal survey structure was established in Upper Canada (now Ontario) in 1781, it implemented a grid system for dividing land into townships, concessions, and lots. The Gunter’s chain was the mandated instrument for these surveys, a practice continued from earlier British colonial times.