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The Public Land Survey System (PLSS) is the surveying method developed and used in the United States to plat, or divide, real property for sale and settling. Also known as the Rectangular Survey System, it was created by the Land Ordinance of 1785 to survey land ceded to the United States by the Treaty of Paris in 1783, following the end of the ...
Figure 1. This BLM map depicts the principal meridians and baselines used for surveying states (colored) in the PLSS. The following are the principal and guide meridians and base lines of the United States, with the year established and a brief summary of what areas' land surveys are based on each.
In U.S. land surveying under the Public Land Survey System (PLSS), a section is an area nominally one square mile (2.6 square kilometers), containing 640 acres (260 hectares), with 36 sections making up one survey township on a rectangular grid.
This BLM map depicts the principal meridians and baselines used for surveying states (colored) in the PLSS.. In the United States Public Land Survey System, a principal meridian is the principal north–south line used for survey control in a large region, and which divides townships between east and west.
In the United States Public Land Survey System, a baseline is specifically the principal east-west line (i.e., a parallel) upon which all rectangular surveys in a defined area are based. The baseline meets its corresponding principal meridian (north-south line) at the point of origin, or initial point, for the land survey.
A U.S. Bureau of Land Management map showing all of the principal meridians and baselines in the U.S. Public Land Survey System. In surveying, an initial point is a datum (a specific point on the surface of the earth) that marks the beginning point for a cadastral survey.
The survey townships are represented by the numbers (horizontal "town" and vertical "range" numbers), and the civil townships using the same boundaries are represented by the names. 1877 map of Warren County, Indiana. Of the civil townships shown on this map, only Pine Township in the north exactly matches a survey township with 36 sections.
A contemporary plat map used in the lot and block system. The lot and block survey system is a method used in the United States and Canada to locate and identify land, particularly for lots in densely populated metropolitan areas, suburban areas and exurbs. It is sometimes referred to as the recorded plat survey system or the recorded map ...