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Thus the state plane coordinate system is still useful. Originally, the state plane coordinate systems were based on the North American Datum of 1927 (NAD27). Later, the more accurate North American Datum of 1983 (NAD83) became the standard (a geodetic datum is the way a coordinate system is linked to the physical Earth). More recently there ...
Primarily from the United States Government Printing Office Style Manual. [1] State names usually signify only parts of each listed state, unless otherwise indicated. Based on the BLM manual's 1973 publication date, and the reference to Clarke's Spheroid of 1866 in section 2-82, coordinates appear to be in the NAD27 datum.
The United States National Grid (USNG) is a multi-purpose location system of grid references used in the United States. It provides a nationally consistent "language of location", optimized for local applications, in a compact, user friendly format. It is similar in design to the national grid reference systems used in other countries.
The National Geodetic Survey (NGS) is a United States federal agency based in Washington, D.C. that defines and manages a national coordinate system, providing the foundation for transportation and communication, mapping and charting, and a large number of science and engineering applications.
The geographic center of the United States is northeast of Belle Fourche in Butte County, South Dakota 1] while that of the contiguous 48 states is near Lebanon in Smith County, Kansas The geographic center of North America lies near Rugby, North Dakota ( 48°10′N 100°10′W / 48.167°N 100.167°W / 48.167; -100.167 ), though ...
The 47th parallel north is a circle of latitude that is 47 degrees north of the Earth's equatorial plane. It crosses Europe , Asia , the Pacific Ocean , North America , and the Atlantic Ocean . At this latitude the sun is visible for 15 hours, 54 minutes during the summer solstice and 8 hours, 31 minutes during the winter solstice . [ 1 ]
In the United States, part of the border between Washington and Oregon. 45°N: Approximates the portion of the Canada–United States border between Quebec (Canada) and New York and Vermont (US). Also approximates most of the border between Montana and Wyoming. 43°30'N: In the US, the border between Minnesota and Iowa. 43°N
GPX (secondary coordinates) The 41st parallel north is a circle of latitude that is 41 degrees north of the Earth's equatorial plane . It crosses Europe , the Mediterranean Sea , Asia , the Pacific Ocean , North America , and the Atlantic Ocean .