Baseline (surveying) - Canada

Canada

In Canadian land surveying, a base line is one of the many principal east-west lines that correspond to 4 tiers of townships (2 tiers north and 2 south). The base lines are about 24 miles apart, with the first base line at the 49th parallel, the Western US-Canadian border. It is therefore equivalent to the standard parallel in the US system. In Ontario, a baseline forms a straight line parallel a geographical feature (usually a lake, especially Lake Ontario or Lake Erie) that serves as a reference line for surveying a grid of property lots. The result of this surveying is the concession road and sideline system in use today.

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