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In geography, 'location' is a position or point in physical space expressed relative to the position of another point or thing. A real location can often be designated using a specific pairing of latitude and longitude, a Cartesian coordinate grid (e.g., State Plane Coordinate System), a spherical coordinate system, or an ellipsoid-based system (e.g., World Geodetic System).
A location may be described as either absolute location, meaning the exact location of an object, or relative location, meaning the location of one object relative to another.