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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.
Marker for the Beginning Point of the U.S. Public Land Survey. The point of beginning is a surveyor's mark at the beginning location for the wide-scale surveying of land.. An example is the Beginning Point of the U.S. Public Land Survey that led to the opening of the Northwest Territory, and is the starting point of the surveys of almost all other lands to the west, reaching all the way to the ...
It is inscribed "1,112 feet south of this spot was the point of beginning for surveying the Public Lands of the United States." [ 3 ] The Public Land Survey System of the United States was established by Congressional legislation in 1785, in order to provide an orderly mechanism for opening the Northwest Territory for settlement.
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 ...
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 initial point establishes a local geographic coordinate system for the surveys that refer to that point. An initial point is defined by the intersection of a principal meridian and a base line.
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. The meridian meets its corresponding baseline at the point of origin, or initial point , for the land survey.
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.
These survey lines govern all land surveys in four states and a large portion of the land surveys for two more. Monuments have been erected where the two lines meet at 34°38′44″N 91°3′42″W / 34.64556°N 91.06167°W / 34.64556; -91.06167 , and the surveyors' skill has been commemorated at the Louisiana Purchase State Park ...