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  2. Cardinal direction - Wikipedia

    en.wikipedia.org/wiki/Cardinal_direction

    The intercardinal (intermediate, or, historically, ordinal [2]) directions are the four intermediate compass directions located halfway between each pair of cardinal directions. Northeast (NE), 45°, halfway between north and east, is the opposite of southwest. Southeast (SE), 135°, halfway between south and east, is the opposite of northwest.

  3. Northern Virginia - Wikipedia

    en.wikipedia.org/wiki/Northern_Virginia

    Northern Virginia, locally referred to as NOVA or NoVA, comprises several counties and independent cities in the Commonwealth of Virginia in the United States. The region radiates westward and southward from Washington, D.C., the nation's capital, and has a population of 3,257,133 people as of 2023 U.S. Census Bureau estimates, representing over a third of the state's total population.

  4. Northeastern United States - Wikipedia

    en.wikipedia.org/wiki/Northeastern_United_States

    Located on the Atlantic coast of North America, the region borders Canada to its north, the Southern United States to its south, the Midwestern United States to its west, and the Atlantic Ocean to its east. The Northeast is one of the four regions defined by the U.S. Census Bureau for the collection and analysis of statistics. [1]

  5. State Plane Coordinate System - Wikipedia

    en.wikipedia.org/wiki/State_Plane_Coordinate_System

    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 has been an effort to increase the accuracy of the NAD83 ...

  6. Tidewater (region) - Wikipedia

    en.wikipedia.org/wiki/Tidewater_(region)

    It is located east of the Atlantic Seaboard Fall Line and north of the Deep South. It encompasses the Chesapeake Bay and includes Delaware, the remainder of the Delmarva Peninsula, Southern Maryland and the Eastern Shore of Maryland, Washington, D.C., Eastern Virginia, and Eastern North Carolina.

  7. Local tangent plane coordinates - Wikipedia

    en.wikipedia.org/wiki/Local_tangent_plane...

    The east north up (ENU) local tangent plane is similar to NED, except for swapping 'down' for 'up' and x for y. Local tangent plane coordinates ( LTP ) are part of a spatial reference system based on the tangent plane defined by the local vertical direction and the Earth's axis of rotation.

  8. List of regions of the United States - Wikipedia

    en.wikipedia.org/wiki/List_of_regions_of_the...

    Region 2: Midwest (designated as the North Central Region before June 1984) [8] Division 3: East North Central (Illinois, Indiana, Michigan, Ohio, and Wisconsin) Division 4: West North Central (Iowa, Kansas, Minnesota, Missouri, Nebraska, North Dakota, and South Dakota) Region 3: South

  9. List of cities and counties in Virginia - Wikipedia

    en.wikipedia.org/wiki/List_of_cities_and...

    Virginia counties and cities by year of establishment. The Commonwealth of Virginia is divided into 95 counties, along with 38 independent cities that are considered county-equivalents for census purposes, totaling 133 second-level subdivisions. In Virginia, cities are co-equal levels of government to counties, but towns are part of counties.