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  2. List of the largest counties in the United States by area

    en.wikipedia.org/wiki/List_of_the_largest...

    The list is based upon the total area of a county, both land and water surface, reported by the United States Census Bureau during the 2000 Census. [1] Alaska and Louisiana are not divided into counties. A different ranking becomes apparent when comparing county areas by land area alone as opposed to total area.

  3. County statistics of the United States - Wikipedia

    en.wikipedia.org/wiki/County_statistics_of_the...

    Also note that the smallest land area with county-level governance in the U.S. is Falls Church, Virginia, but it is an independent city and not a county or part of one. Kingman Reef is the smallest county-equivalent in all U.S. territory (though it has no government). Kalawao County, Hawaii is the smallest true county by land area.

  4. Shoelace formula - Wikipedia

    en.wikipedia.org/wiki/Shoelace_formula

    Shoelace scheme for determining the area of a polygon with point coordinates (,),..., (,). The shoelace formula, also known as Gauss's area formula and the surveyor's formula, [1] is a mathematical algorithm to determine the area of a simple polygon whose vertices are described by their Cartesian coordinates in the plane. [2]

  5. State Plane Coordinate System - Wikipedia

    en.wikipedia.org/wiki/State_Plane_Coordinate_System

    The Seattle metropolitan area in Washington is an example of this. King County, which includes the City of Seattle, uses the "Washington State Plane North" coordinate system, while Pierce County, which includes the City of Tacoma, uses "Washington State Plane South". Thus any regional agency that wants to combine regional data from local ...

  6. List of counties in Iowa - Wikipedia

    en.wikipedia.org/wiki/List_of_counties_in_Iowa

    The smallest county (Dickinson) has a land area of 381 sq mi (990 km 2), while the largest (Kossuth) has an area 973 sq mi (2,520 km 2). Polk County is the most densely populated county at 864/sq mi (333.5/km 2), an increase in density from 2010 when it was 655.5/sq mi (253.08/km 2). [7] Polk County contains the state's capital and largest city ...

  7. List of principal and guide meridians and base lines of the ...

    en.wikipedia.org/wiki/List_of_principal_and...

    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.

  8. AOL Mail

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    You can find instant answers on our AOL Mail help page. Should you need additional assistance we have experts available around the clock at 800-730-2563. Should you need additional assistance we have experts available around the clock at 800-730-2563.

  9. List of counties in Massachusetts - Wikipedia

    en.wikipedia.org/wiki/List_of_counties_in...

    The U.S. state of Massachusetts has 14 counties, though eight [1] of these fourteen county governments were abolished between 1997 and 2000. The counties in the southeastern portion of the state retain county-level local government (Barnstable, Bristol, Dukes, Norfolk, Plymouth) or, in one case, (Nantucket County) consolidated city-county government.