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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.
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.
Some of the free software mentioned here does not have detailed maps (or maps at all) or the ability to follow streets or type in street names (no geocoding). However, in many cases, it is also that which makes the program free (and sometimes open source [ 1 ] ), avoid the need of an Internet connection, [ 2 ] [ 3 ] [ 4 ] and make it very ...
Generic Mapping Tools (GMT) are an open-source collection of computer software tools for processing and displaying xy and xyz datasets, including rasterization, filtering and other image processing operations, and various kinds of map projections.
This Bureau of Land Management map depicts the public domain lands surveyed and platted under the auspices of the GLO to facilitate the sale of those lands.. The GLO oversaw the surveying, platting, and sale of the public lands in the Western United States and administered the Homestead Act [2] and the Preemption Act in disposal of public lands.