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This is a list of points in the United States that are farther north, south, east or west than any other location in the country. Also included are extreme points in elevation, extreme distances and other points of peculiar geographic interest.
^ A geodesic is defined as the shortest route between any two points on the surface of the Earth, as measured along the surface of the Earth (rather than through the Earth's interior); they are "straight lines" only in the sense that they are plotted on an idealized two-dimensional surface of the three-dimensional Earth, neglecting changes in ...
A compass rose is primarily composed of four cardinal directions — north, east, south, and west —each separated by 90 degrees, and secondarily divided by four ordinal (intercardinal) directions—northeast, southeast, southwest, and northwest—each located halfway between two cardinal directions.
The great-circle distance, orthodromic distance, or spherical distance is the distance along a great circle . It is the shortest distance between two points on the surface of a sphere, measured along the surface of the sphere (as opposed to a straight line through the sphere's interior).
The four cardinal directions, or cardinal points, are the four main compass directions: north, south, east, and west, commonly denoted by their initials N, S, E, and W respectively. Relative to north, the directions east, south, and west are at 90 degree intervals in the clockwise direction.
The haversine formula determines the great-circle distance between two points on a sphere given their longitudes and latitudes. Important in navigation, it is a special case of a more general formula in spherical trigonometry, the law of haversines, that relates the sides and angles of spherical triangles.
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