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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 ...
This is a list of notable polling organizations by country. All the major television networks , alone or in conjunction with the largest newspapers or magazines, in virtually every country with elections, operate their own versions of polling operations, in collaboration or independently through various applications.
BLM map of the meridians. The five principal meridians of Alaska are the Copper River meridian (established 1905), Fairbanks meridian (adopted 1910), Kateel River meridian (adopted 1956), Seward meridian (adopted 1911) and Umiat meridian (adopted 1956).
SurveyUSA has historically relied on random sampling methods for its polling, but switched to include nonprobability sampling methods as well in the 2010s. [3] [4] SurveyUSA varies polling contact methods on a project-by-project basis, using both telephone and online surveys of respondents, including blends of methods for single polls.
United States Census: United States Census Bureau: All persons dwelling in U.S. residential structures, and many homeless 309 million people in 2010 [1] 1790 Ongoing Age, sex and race of household members. [2] Internet self-response, Phone response, Mail response [3] American Community Survey: United States Census Bureau [4] 3.5 million ...
The United States remains virtually the only developed country in the world without a standardized civilian topographic map series in the standard 1:25,000 or 1:50,000 metric scales, making coordination difficult in border regions (the U.S. military does issue 1:50,000 scale topo maps of the continental United States, though only for use by ...
Surveying prism pole with instrument attached. In surveying, a pole is bar made of wood or metal and normally held vertical, upon which different instruments can be mounted: a prism, a GPS device, etc. [1] It may be manufactured with a predetermined length (e.g., 2 meters) or may be graduated for different heights or stages.
The United States National Geodetic Survey (NGS) and predecessor agencies manages the National Spatial Reference System (NSRS), which includes permanent survey marks for horizontal position (latitude and longitude), height, or gravity. Some marks have information for both horizontal position and height.