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The survey is claimed to be the first major cadastral survey undertaken by any nation. The point now lies underwater on the state line between Ohio and Pennsylvania. Because it is submerged, a monument commemorating the point is adjacent to the nearest roadway and located on the state line between East Liverpool, Ohio and Ohioville, Pennsylvania.
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 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.
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 ...
Land surveys: These detail the boundaries of a parcel of land. Topographic surveys: These illustrate the plane and elevation of the land. They’re often required for site work such as road ...
The Public Land Survey System was not the first to define and implement a survey grid. A number of similar systems were established, often using terms like section and township but not necessarily in the same way. For example, the lands of the Holland Purchase in western New York were surveyed into a township grid before the PLSS was established.
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